115583840 has 96 divisors (see below), whose sum is σ = 290394720. Its totient is φ = 43352064.

The previous prime is 115583827. The next prime is 115583851. The reversal of 115583840 is 48385511.

It is a self number, because there is not a number n which added to its sum of digits gives 115583840.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 586622 + ... + 586818.

It is an arithmetic number, because the mean of its divisors is an integer number (3024945).

Almost surely, 2^115583840 is an apocalyptic number.

115583840 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 115583840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145197360).

115583840 is an abundant number, since it is smaller than the sum of its proper divisors (174810880).

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

115583840 is a wasteful number, since it uses less digits than its factorization.

115583840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424 (or 416 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 35.

The square root of 115583840 is about 10750.9925123218. The cubic root of 115583840 is about 487.1159754543.

The spelling of 115583840 in words is "one hundred fifteen million, five hundred eighty-three thousand, eight hundred forty".