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1450222040 = 235532692543
BaseRepresentation
bin101011001110000…
…1010000111011000
310202001211220122102
41112130022013120
510432224101130
6355523142532
750636453411
oct12634120730
93661756572
101450222040
11684681313
12345814a48
131a15b3c67
14da866808
15874b5645
hex5670a1d8

1450222040 has 64 divisors (see below), whose sum is σ = 3338236800. Its totient is φ = 566804992.

The previous prime is 1450221977. The next prime is 1450222049. The reversal of 1450222040 is 402220541.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1450222049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 569009 + ... + 571551.

It is an arithmetic number, because the mean of its divisors is an integer number (52159950).

Almost surely, 21450222040 is an apocalyptic number.

1450222040 is a gapful number since it is divisible by the number (10) 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 1450222040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1669118400).

1450222040 is an abundant number, since it is smaller than the sum of its proper divisors (1888014760).

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

1450222040 is a wasteful number, since it uses less digits than its factorization.

1450222040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2876 (or 2872 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 1450222040 is about 38081.7809457488. The cubic root of 1450222040 is about 1131.9089668624.

Adding to 1450222040 its reverse (402220541), we get a palindrome (1852442581).

It can be divided in two parts, 1450 and 222040, that multiplied together give a triangular number (321958000 = T25375).

The spelling of 1450222040 in words is "one billion, four hundred fifty million, two hundred twenty-two thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 53 106 212 265 269 424 530 538 1060 1076 1345 2120 2152 2543 2690 5086 5380 10172 10760 12715 14257 20344 25430 28514 50860 57028 71285 101720 114056 134779 142570 269558 285140 539116 570280 673895 684067 1078232 1347790 1368134 2695580 2736268 3420335 5391160 5472536 6840670 13681340 27362680 36255551 72511102 145022204 181277755 290044408 362555510 725111020 1450222040