115557832 has 64 divisors (see below), whose sum is σ = 244661760. Its totient is φ = 50803200.

The previous prime is 115557811. The next prime is 115557833. The reversal of 115557832 is 238755511.

It is a happy number.

It is a super-2 number, since 2×115557832² = 26707225073080448, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 115557791 and 115557800.

It is not an unprimeable number, because it can be changed into a prime (115557833) 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 15 ways as a sum of consecutive naturals, for example, 235107 + ... + 235597.

It is an arithmetic number, because the mean of its divisors is an integer number (3822840).

Almost surely, 2^115557832 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 115557832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122330880).

115557832 is an abundant number, since it is smaller than the sum of its proper divisors (129103928).

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

115557832 is a wasteful number, since it uses less digits than its factorization.

115557832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614 (or 610 counting only the distinct ones).

The product of its digits is 42000, while the sum is 37.

The square root of 115557832 is about 10749.7828815284. The cubic root of 115557832 is about 487.0794367171.

The spelling of 115557832 in words is "one hundred fifteen million, five hundred fifty-seven thousand, eight hundred thirty-two".