22257856 has 14 divisors (see below), whose sum is σ = 44168060. Its totient is φ = 11128896.

The previous prime is 22257779. The next prime is 22257881. The reversal of 22257856 is 65875222.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173826 + ... + 173953.

Almost surely, 2^22257856 is an apocalyptic number.

It is an amenable number.

22257856 is a deficient number, since it is larger than the sum of its proper divisors (21910204).

22257856 is an equidigital number, since it uses as much as digits as its factorization.

22257856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347791 (or 347781 counting only the distinct ones).

The product of its digits is 67200, while the sum is 37.

The square root of 22257856 is about 4717.8232268706. The cubic root of 22257856 is about 281.2944149774.

The spelling of 22257856 in words is "twenty-two million, two hundred fifty-seven thousand, eight hundred fifty-six".