115985880 has 192 divisors, whose sum is σ = 410342400. Its totient is φ = 28304640.

The previous prime is 115985879. The next prime is 115985897. The reversal of 115985880 is 88589511.

115985880 is a `hidden beast` number, since 1 + 1 + 598 + 58 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 211767 + ... + 212313.

It is an arithmetic number, because the mean of its divisors is an integer number (2137200).

Almost surely, 2^115985880 is an apocalyptic number.

115985880 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 115985880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205171200).

115985880 is an abundant number, since it is smaller than the sum of its proper divisors (294356520).

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

115985880 is a wasteful number, since it uses less digits than its factorization.

115985880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614 (or 607 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 45.

The square root of 115985880 is about 10769.6740897763. The cubic root of 115985880 is about 487.6801070212.

The spelling of 115985880 in words is "one hundred fifteen million, nine hundred eighty-five thousand, eight hundred eighty".