22490980 has 24 divisors (see below), whose sum is σ = 47476800. Its totient is φ = 8949600.

The previous prime is 22490969. The next prime is 22490981. The reversal of 22490980 is 8909422.

It is not an unprimeable number, because it can be changed into a prime (22490981) 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, 1155 + ... + 6805.

It is an arithmetic number, because the mean of its divisors is an integer number (1978200).

Almost surely, 2^22490980 is an apocalyptic number.

22490980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22490980 is an abundant number, since it is smaller than the sum of its proper divisors (24985820).

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

22490980 is a wasteful number, since it uses less digits than its factorization.

22490980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5859 (or 5857 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 22490980 is about 4742.4656034599. The cubic root of 22490980 is about 282.2730785332.

It can be divided in two parts, 224 and 90980, that added together give a square (91204 = 302²).

The spelling of 22490980 in words is "twenty-two million, four hundred ninety thousand, nine hundred eighty".