22508922 has 16 divisors (see below), whose sum is σ = 45417600. Its totient is φ = 7436352.

The previous prime is 22508903. The next prime is 22508923. The reversal of 22508922 is 22980522.

It is a self number, because there is not a number n which added to its sum of digits gives 22508922.

It is not an unprimeable number, because it can be changed into a prime (22508923) 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, 15922 + ... + 17277.

It is an arithmetic number, because the mean of its divisors is an integer number (2838600).

Almost surely, 2^22508922 is an apocalyptic number.

22508922 is an abundant number, since it is smaller than the sum of its proper divisors (22908678).

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

22508922 is a wasteful number, since it uses less digits than its factorization.

22508922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33317.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 22508922 is about 4744.3568584161. The cubic root of 22508922 is about 282.3481189485.

The spelling of 22508922 in words is "twenty-two million, five hundred eight thousand, nine hundred twenty-two".