115638402 has 16 divisors (see below), whose sum is σ = 252302112. Its totient is φ = 35041920.

The previous prime is 115638373. The next prime is 115638433. The reversal of 115638402 is 204836511.

It is a super-2 number, since 2×115638402² = 26744480034227208, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 115638402.

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, 875983 + ... + 876114.

It is an arithmetic number, because the mean of its divisors is an integer number (15768882).

Almost surely, 2^115638402 is an apocalyptic number.

115638402 is an abundant number, since it is smaller than the sum of its proper divisors (136663710).

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

115638402 is a wasteful number, since it uses less digits than its factorization.

115638402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1752113.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 115638402 is about 10753.5297460880. The cubic root of 115638402 is about 487.1926120061.

The spelling of 115638402 in words is "one hundred fifteen million, six hundred thirty-eight thousand, four hundred two".