115597240 has 64 divisors (see below), whose sum is σ = 289150560. Its totient is φ = 41233920.

The previous prime is 115597199. The next prime is 115597247. The reversal of 115597240 is 42795511.

It is a junction number, because it is equal to n+sod(n) for n = 115597196 and 115597205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115597247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20842 + ... + 25798.

Almost surely, 2^115597240 is an apocalyptic number.

115597240 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 115597240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144575280).

115597240 is an abundant number, since it is smaller than the sum of its proper divisors (173553320).

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

115597240 is a wasteful number, since it uses less digits than its factorization.

115597240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5032 (or 5028 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 34.

The square root of 115597240 is about 10751.6156925366. The cubic root of 115597240 is about 487.1347990252.

The spelling of 115597240 in words is "one hundred fifteen million, five hundred ninety-seven thousand, two hundred forty".