22512880 has 40 divisors (see below), whose sum is σ = 56371392. Its totient is φ = 8312064.

The previous prime is 22512869. The next prime is 22512901. The reversal of 22512880 is 8821522.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9784 + ... + 11863.

Almost surely, 2^22512880 is an apocalyptic number.

22512880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22512880 is an abundant number, since it is smaller than the sum of its proper divisors (33858512).

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

22512880 is a wasteful number, since it uses less digits than its factorization.

22512880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21673 (or 21667 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 22512880 is about 4744.7739672191. The cubic root of 22512880 is about 282.3646674732.

The spelling of 22512880 in words is "twenty-two million, five hundred twelve thousand, eight hundred eighty".