115905432 has 32 divisors (see below), whose sum is σ = 290605680. Its totient is φ = 38522880.

The previous prime is 115905409. The next prime is 115905437. The reversal of 115905432 is 234509511.

It is a self number, because there is not a number n which added to its sum of digits gives 115905432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115905437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1632 + ... + 15312.

Almost surely, 2^115905432 is an apocalyptic number.

115905432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

115905432 is an abundant number, since it is smaller than the sum of its proper divisors (174700248).

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

115905432 is a wasteful number, since it uses less digits than its factorization.

115905432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14043 (or 14039 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 115905432 is about 10765.9385099489. The cubic root of 115905432 is about 487.5673290307.

The spelling of 115905432 in words is "one hundred fifteen million, nine hundred five thousand, four hundred thirty-two".