22913580 has 48 divisors (see below), whose sum is σ = 64368864. Its totient is φ = 6090240.

The previous prime is 22913551. The next prime is 22913593. The reversal of 22913580 is 8531922.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 30894 + ... + 31626.

It is an arithmetic number, because the mean of its divisors is an integer number (1341018).

Almost surely, 2^22913580 is an apocalyptic number.

22913580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22913580 is an abundant number, since it is smaller than the sum of its proper divisors (41455284).

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

22913580 is a wasteful number, since it uses less digits than its factorization.

22913580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1266 (or 1264 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 22913580 is about 4786.8131361063. The cubic root of 22913580 is about 284.0300669086.

The spelling of 22913580 in words is "twenty-two million, nine hundred thirteen thousand, five hundred eighty".