22556816 has 20 divisors (see below), whose sum is σ = 43818624. Its totient is φ = 11248800.

The previous prime is 22556803. The next prime is 22556837. The reversal of 22556816 is 61865522.

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, 5261 + ... + 8531.

Almost surely, 2^22556816 is an apocalyptic number.

It is an amenable number.

22556816 is a deficient number, since it is larger than the sum of its proper divisors (21261808).

22556816 is a wasteful number, since it uses less digits than its factorization.

22556816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3710 (or 3704 counting only the distinct ones).

The product of its digits is 28800, while the sum is 35.

The square root of 22556816 is about 4749.4016465235. The cubic root of 22556816 is about 282.5482351657.

The spelling of 22556816 in words is "twenty-two million, five hundred fifty-six thousand, eight hundred sixteen".