115999400 has 48 divisors (see below), whose sum is σ = 294222240. Its totient is φ = 42180800.

The previous prime is 115999397. The next prime is 115999417. The reversal of 115999400 is 4999511.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24164 + ... + 28563.

It is an arithmetic number, because the mean of its divisors is an integer number (6129630).

Almost surely, 2^115999400 is an apocalyptic number.

115999400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115999400 is an abundant number, since it is smaller than the sum of its proper divisors (178222840).

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

115999400 is a wasteful number, since it uses less digits than its factorization.

115999400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52754 (or 52745 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 38.

The square root of 115999400 is about 10770.3017599323. The cubic root of 115999400 is about 487.6990552440.

The spelling of 115999400 in words is "one hundred fifteen million, nine hundred ninety-nine thousand, four hundred".