22655980 has 24 divisors (see below), whose sum is σ = 50082480. Its totient is φ = 8585280.

The previous prime is 22655921. The next prime is 22655981. The reversal of 22655980 is 8955622.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (22655981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29431 + ... + 30190.

It is an arithmetic number, because the mean of its divisors is an integer number (2086770).

Almost surely, 2^22655980 is an apocalyptic number.

22655980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22655980 is an abundant number, since it is smaller than the sum of its proper divisors (27426500).

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

22655980 is a wasteful number, since it uses less digits than its factorization.

22655980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59649 (or 59647 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 22655980 is about 4759.8298288909. The cubic root of 22655980 is about 282.9616749409.

The spelling of 22655980 in words is "twenty-two million, six hundred fifty-five thousand, nine hundred eighty".