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3468640 = 255719163
BaseRepresentation
bin1101001110110101100000
320112020002011
431032311200
51341444030
6202202304
741324440
oct15166540
96466064
103468640
111a5a04a
1211b3394
13945a66
14664120
15487b2a
hex34ed60

3468640 has 96 divisors (see below), whose sum is σ = 9918720. Its totient is φ = 1119744.

The previous prime is 3468637. The next prime is 3468649. The reversal of 3468640 is 468643.

3468640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3468649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21199 + ... + 21361.

It is an arithmetic number, because the mean of its divisors is an integer number (103320).

Almost surely, 23468640 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3468640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4959360).

3468640 is an abundant number, since it is smaller than the sum of its proper divisors (6450080).

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

3468640 is a wasteful number, since it uses less digits than its factorization.

3468640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204 (or 196 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 3468640 is about 1862.4285221184. The cubic root of 3468640 is about 151.3746235128.

The spelling of 3468640 in words is "three million, four hundred sixty-eight thousand, six hundred forty".

Divisors: 1 2 4 5 7 8 10 14 16 19 20 28 32 35 38 40 56 70 76 80 95 112 133 140 152 160 163 190 224 266 280 304 326 380 532 560 608 652 665 760 815 1064 1120 1141 1304 1330 1520 1630 2128 2282 2608 2660 3040 3097 3260 4256 4564 5216 5320 5705 6194 6520 9128 10640 11410 12388 13040 15485 18256 21280 21679 22820 24776 26080 30970 36512 43358 45640 49552 61940 86716 91280 99104 108395 123880 173432 182560 216790 247760 346864 433580 495520 693728 867160 1734320 3468640