115366820 has 24 divisors (see below), whose sum is σ = 243366144. Its totient is φ = 45938016.

The previous prime is 115366819. The next prime is 115366829. The reversal of 115366820 is 28663511.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (115366829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8474 + ... + 17393.

It is an arithmetic number, because the mean of its divisors is an integer number (10140256).

Almost surely, 2^115366820 is an apocalyptic number.

115366820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115366820 is an abundant number, since it is smaller than the sum of its proper divisors (127999324).

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

115366820 is a wasteful number, since it uses less digits than its factorization.

115366820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26099 (or 26097 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 115366820 is about 10740.8947485766. The cubic root of 115366820 is about 486.8109151020.

The spelling of 115366820 in words is "one hundred fifteen million, three hundred sixty-six thousand, eight hundred twenty".