22612880 has 20 divisors (see below), whose sum is σ = 52575132. Its totient is φ = 9045120.

The previous prime is 22612879. The next prime is 22612897. The reversal of 22612880 is 8821622.

It can be written as a sum of positive squares in 2 ways, for example, as 10137856 + 12475024 = 3184^2 + 3532^2 .

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

It is a super-2 number, since 2×22612880² = 1022684683788800, which contains 22 as substring.

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, 141251 + ... + 141410.

Almost surely, 2^22612880 is an apocalyptic number.

22612880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22612880 is an abundant number, since it is smaller than the sum of its proper divisors (29962252).

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

22612880 is a wasteful number, since it uses less digits than its factorization.

22612880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282674 (or 282668 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 22612880 is about 4755.3002008285. The cubic root of 22612880 is about 282.7821286739.

The spelling of 22612880 in words is "twenty-two million, six hundred twelve thousand, eight hundred eighty".