115180440 has 128 divisors (see below), whose sum is σ = 369515520. Its totient is φ = 28620800.

The previous prime is 115180411. The next prime is 115180441. The reversal of 115180440 is 44081511.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 115180440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115180441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 267025 + ... + 267455.

It is an arithmetic number, because the mean of its divisors is an integer number (2886840).

Almost surely, 2^115180440 is an apocalyptic number.

115180440 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 115180440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184757760).

115180440 is an abundant number, since it is smaller than the sum of its proper divisors (254335080).

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

115180440 is a wasteful number, since it uses less digits than its factorization.

115180440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593 (or 589 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 24.

The square root of 115180440 is about 10732.2150556164. The cubic root of 115180440 is about 486.5486192281.

The spelling of 115180440 in words is "one hundred fifteen million, one hundred eighty thousand, four hundred forty".