22086564 has 24 divisors (see below), whose sum is σ = 51838080. Its totient is φ = 7318944.

The previous prime is 22086557. The next prime is 22086593. The reversal of 22086564 is 46568022.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3244 + ... + 7395.

It is an arithmetic number, because the mean of its divisors is an integer number (2159920).

Almost surely, 2^22086564 is an apocalyptic number.

It is an amenable number.

22086564 is an abundant number, since it is smaller than the sum of its proper divisors (29751516).

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

22086564 is a wasteful number, since it uses less digits than its factorization.

22086564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10819 (or 10817 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 22086564 is about 4699.6344538698. The cubic root of 22086564 is about 280.5709607868.

The spelling of 22086564 in words is "twenty-two million, eighty-six thousand, five hundred sixty-four".