115459240 has 128 divisors (see below), whose sum is σ = 305091360. Its totient is φ = 38928384.

The previous prime is 115459217. The next prime is 115459243. The reversal of 115459240 is 42954511.

It can be written as a sum of positive squares in 16 ways, for example, as 22259524 + 93199716 = 4718^2 + 9654^2 .

It is a super-2 number, since 2×115459240² = 26661672202755200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (115459243) 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, 326904 + ... + 327256.

Almost surely, 2^115459240 is an apocalyptic number.

115459240 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 115459240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152545680).

115459240 is an abundant number, since it is smaller than the sum of its proper divisors (189632120).

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

115459240 is a wasteful number, since it uses less digits than its factorization.

115459240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431 (or 427 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 115459240 is about 10745.1961359484. The cubic root of 115459240 is about 486.9408746405.

The spelling of 115459240 in words is "one hundred fifteen million, four hundred fifty-nine thousand, two hundred forty".