115643904 has 40 divisors (see below), whose sum is σ = 308086680. Its totient is φ = 38547456.

The previous prime is 115643887. The next prime is 115643929. The reversal of 115643904 is 409346511.

It is a super-2 number, since 2×115643904² = 26747025064722432, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36109 + ... + 39180.

It is an arithmetic number, because the mean of its divisors is an integer number (7702167).

Almost surely, 2^115643904 is an apocalyptic number.

It is an amenable number.

115643904 is an abundant number, since it is smaller than the sum of its proper divisors (192442776).

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

115643904 is an frugal number, since it uses more digits than its factorization.

115643904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75310 (or 75294 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 115643904 is about 10753.7855660228. The cubic root of 115643904 is about 487.2003386529.

The spelling of 115643904 in words is "one hundred fifteen million, six hundred forty-three thousand, nine hundred four".