22590916 has 6 divisors (see below), whose sum is σ = 39534110. Its totient is φ = 11295456.

The previous prime is 22590901. The next prime is 22590937. The reversal of 22590916 is 61909522.

It can be written as a sum of positive squares in only one way, i.e., 18096516 + 4494400 = 4254^2 + 2120^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2823861 + ... + 2823868.

Almost surely, 2^22590916 is an apocalyptic number.

It is an amenable number.

22590916 is a deficient number, since it is larger than the sum of its proper divisors (16943194).

22590916 is a wasteful number, since it uses less digits than its factorization.

22590916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5647733 (or 5647731 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 22590916 is about 4752.9902166952. The cubic root of 22590916 is about 282.6905431307.

The spelling of 22590916 in words is "twenty-two million, five hundred ninety thousand, nine hundred sixteen".