22580920 has 16 divisors (see below), whose sum is σ = 50807160. Its totient is φ = 9032352.

The previous prime is 22580869. The next prime is 22580933. The reversal of 22580920 is 2908522.

It is a congruent number.

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, 282222 + ... + 282301.

Almost surely, 2^22580920 is an apocalyptic number.

22580920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22580920 is an abundant number, since it is smaller than the sum of its proper divisors (28226240).

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

22580920 is a wasteful number, since it uses less digits than its factorization.

22580920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564534 (or 564530 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 22580920 is about 4751.9385517913. The cubic root of 22580920 is about 282.6488421279.

The spelling of 22580920 in words is "twenty-two million, five hundred eighty thousand, nine hundred twenty".