115808690 has 16 divisors (see below), whose sum is σ = 208751040. Its totient is φ = 46257840.

The previous prime is 115808603. The next prime is 115808699. The reversal of 115808690 is 96808511.

It is a super-2 number, since 2×115808690² = 26823305359032200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (115808699) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 446 + ... + 15225.

It is an arithmetic number, because the mean of its divisors is an integer number (13046940).

Almost surely, 2^115808690 is an apocalyptic number.

115808690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

115808690 is a deficient number, since it is larger than the sum of its proper divisors (92942350).

115808690 is a wasteful number, since it uses less digits than its factorization.

115808690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16417.

The product of its (nonzero) digits is 17280, while the sum is 38.

The square root of 115808690 is about 10761.4446056280. Note that the first 3 decimals coincide. The cubic root of 115808690 is about 487.4316397681.

The spelling of 115808690 in words is "one hundred fifteen million, eight hundred eight thousand, six hundred ninety".