115844520 has 256 divisors, whose sum is σ = 414720000. Its totient is φ = 25574400.

The previous prime is 115844507. The next prime is 115844543. The reversal of 115844520 is 25448511.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 777406 + ... + 777554.

It is an arithmetic number, because the mean of its divisors is an integer number (1620000).

Almost surely, 2^115844520 is an apocalyptic number.

115844520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 115844520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (207360000).

115844520 is an abundant number, since it is smaller than the sum of its proper divisors (298875480).

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

115844520 is a wasteful number, since it uses less digits than its factorization.

115844520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224 (or 220 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 30.

The square root of 115844520 is about 10763.1092162070. The cubic root of 115844520 is about 487.4819033388.

The spelling of 115844520 in words is "one hundred fifteen million, eight hundred forty-four thousand, five hundred twenty".