115310640 has 40 divisors (see below), whose sum is σ = 357463728. Its totient is φ = 30749440.

The previous prime is 115310623. The next prime is 115310651. The reversal of 115310640 is 46013511.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239991 + ... + 240470.

Almost surely, 2^115310640 is an apocalyptic number.

115310640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115310640 is an abundant number, since it is smaller than the sum of its proper divisors (242153088).

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

115310640 is a wasteful number, since it uses less digits than its factorization.

115310640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480477 (or 480471 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 115310640 is about 10738.2791917513. The cubic root of 115310640 is about 486.7318817549.

The spelling of 115310640 in words is "one hundred fifteen million, three hundred ten thousand, six hundred forty".