115812040 has 16 divisors (see below), whose sum is σ = 260577180. Its totient is φ = 46324800.

The previous prime is 115812013. The next prime is 115812043. The reversal of 115812040 is 40218511.

It can be written as a sum of positive squares in 2 ways, for example, as 113507716 + 2304324 = 10654^2 + 1518^2 .

It is not an unprimeable number, because it can be changed into a prime (115812043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1447611 + ... + 1447690.

Almost surely, 2^115812040 is an apocalyptic number.

115812040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115812040 is an abundant number, since it is smaller than the sum of its proper divisors (144765140).

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

115812040 is a wasteful number, since it uses less digits than its factorization.

115812040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2895312 (or 2895308 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 22.

The square root of 115812040 is about 10761.6002527505. The cubic root of 115812040 is about 487.4363397039.

The spelling of 115812040 in words is "one hundred fifteen million, eight hundred twelve thousand, forty".