115466640 has 80 divisors (see below), whose sum is σ = 367649088. Its totient is φ = 29956608.

The previous prime is 115466633. The next prime is 115466651. The reversal of 115466640 is 46664511.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

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, 2379 + ... + 15381.

Almost surely, 2^115466640 is an apocalyptic number.

115466640 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 115466640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183824544).

115466640 is an abundant number, since it is smaller than the sum of its proper divisors (252182448).

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

115466640 is a wasteful number, since it uses less digits than its factorization.

115466640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13056 (or 13050 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 115466640 is about 10745.5404703533. The cubic root of 115466640 is about 486.9512774040.

The spelling of 115466640 in words is "one hundred fifteen million, four hundred sixty-six thousand, six hundred forty".