22656980 has 24 divisors (see below), whose sum is σ = 47759712. Its totient is φ = 9028512.

The previous prime is 22656979. The next prime is 22656983. The reversal of 22656980 is 8965622.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22656983) 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, 3659 + ... + 7661.

It is an arithmetic number, because the mean of its divisors is an integer number (1989988).

Almost surely, 2^22656980 is an apocalyptic number.

22656980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22656980 is an abundant number, since it is smaller than the sum of its proper divisors (25102732).

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

22656980 is a wasteful number, since it uses less digits than its factorization.

22656980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4295 (or 4293 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 22656980 is about 4759.9348735040. The cubic root of 22656980 is about 282.9658380436.

The spelling of 22656980 in words is "twenty-two million, six hundred fifty-six thousand, nine hundred eighty".