7312880 has 20 divisors (see below), whose sum is σ = 17002632. Its totient is φ = 2925120.

The previous prime is 7312867. The next prime is 7312909. The reversal of 7312880 is 882137.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45626 + ... + 45785.

Almost surely, 2^7312880 is an apocalyptic number.

It is an amenable number.

7312880 is an abundant number, since it is smaller than the sum of its proper divisors (9689752).

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

7312880 is a wasteful number, since it uses less digits than its factorization.

7312880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91424 (or 91418 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 7312880 is about 2704.2337177101. The cubic root of 7312880 is about 194.1017640185.

It can be divided in two parts, 7312 and 880, that added together give a 13-th power (8192 = 2¹³).

The spelling of 7312880 in words is "seven million, three hundred twelve thousand, eight hundred eighty".