115658940 has 48 divisors (see below), whose sum is σ = 324656640. Its totient is φ = 30765120.

The previous prime is 115658911. The next prime is 115658953. The reversal of 115658940 is 49856511.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24145 + ... + 28535.

It is an arithmetic number, because the mean of its divisors is an integer number (6763680).

Almost surely, 2^115658940 is an apocalyptic number.

115658940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115658940 is an abundant number, since it is smaller than the sum of its proper divisors (208997700).

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

115658940 is a wasteful number, since it uses less digits than its factorization.

115658940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4842 (or 4840 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 39.

The square root of 115658940 is about 10754.4846459512. The cubic root of 115658940 is about 487.2214529718.

The spelling of 115658940 in words is "one hundred fifteen million, six hundred fifty-eight thousand, nine hundred forty".