22909580 has 12 divisors (see below), whose sum is σ = 48110160. Its totient is φ = 9163824.

The previous prime is 22909571. The next prime is 22909613. The reversal of 22909580 is 8590922.

It is a self number, because there is not a number n which added to its sum of digits gives 22909580.

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, 572720 + ... + 572759.

It is an arithmetic number, because the mean of its divisors is an integer number (4009180).

Almost surely, 2^22909580 is an apocalyptic number.

22909580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22909580 is an abundant number, since it is smaller than the sum of its proper divisors (25200580).

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

22909580 is a wasteful number, since it uses less digits than its factorization.

22909580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1145488 (or 1145486 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 22909580 is about 4786.3953033572. The cubic root of 22909580 is about 284.0135383350.

The spelling of 22909580 in words is "twenty-two million, nine hundred nine thousand, five hundred eighty".