115072040 has 16 divisors (see below), whose sum is σ = 258912180. Its totient is φ = 46028800.

The previous prime is 115072039. The next prime is 115072049. The reversal of 115072040 is 40270511.

It can be written as a sum of positive squares in 2 ways, for example, as 115047076 + 24964 = 10726^2 + 158^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (115072049) 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, 1438361 + ... + 1438440.

Almost surely, 2^115072040 is an apocalyptic number.

115072040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115072040 is an abundant number, since it is smaller than the sum of its proper divisors (143840140).

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

115072040 is a wasteful number, since it uses less digits than its factorization.

115072040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2876812 (or 2876808 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 115072040 is about 10727.1636512174. The cubic root of 115072040 is about 486.3959358249.

The spelling of 115072040 in words is "one hundred fifteen million, seventy-two thousand, forty".