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468440440 = 2351317192789
BaseRepresentation
bin11011111010111…
…101010101111000
31012122110020110221
4123322331111320
51424410043230
6114252145424
714415451366
oct3372752570
91178406427
10468440440
11220471266
12110a68274
13760852c0
14462dc636
152b1d227a
hex1bebd578

468440440 has 128 divisors (see below), whose sum is σ = 1265544000. Its totient is φ = 154165248.

The previous prime is 468440437. The next prime is 468440443. The reversal of 468440440 is 44044864.

It is an interprime number because it is at equal distance from previous prime (468440437) and next prime (468440443).

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 468440396 and 468440405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (468440443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 166566 + ... + 169354.

Almost surely, 2468440440 is an apocalyptic number.

468440440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 468440440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (632772000).

468440440 is an abundant number, since it is smaller than the sum of its proper divisors (797103560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

468440440 is a wasteful number, since it uses less digits than its factorization.

468440440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2849 (or 2845 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 34.

The square root of 468440440 is about 21643.4849319605. The cubic root of 468440440 is about 776.6370888509.

The spelling of 468440440 in words is "four hundred sixty-eight million, four hundred forty thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 13 17 19 20 26 34 38 40 52 65 68 76 85 95 104 130 136 152 170 190 221 247 260 323 340 380 442 494 520 646 680 760 884 988 1105 1235 1292 1615 1768 1976 2210 2470 2584 2789 3230 4199 4420 4940 5578 6460 8398 8840 9880 11156 12920 13945 16796 20995 22312 27890 33592 36257 41990 47413 52991 55780 72514 83980 94826 105982 111560 145028 167960 181285 189652 211964 237065 264955 290056 362570 379304 423928 474130 529910 616369 688883 725140 900847 948260 1059820 1232738 1377766 1450280 1801694 1896520 2119640 2465476 2755532 3081845 3444415 3603388 4504235 4930952 5511064 6163690 6888830 7206776 9008470 11711011 12327380 13777660 18016940 23422022 24654760 27555320 36033880 46844044 58555055 93688088 117110110 234220220 468440440