22457256 has 16 divisors (see below), whose sum is σ = 56143200. Its totient is φ = 7485744.

The previous prime is 22457219. The next prime is 22457273. The reversal of 22457256 is 65275422.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 467836 + ... + 467883.

It is an arithmetic number, because the mean of its divisors is an integer number (3508950).

Almost surely, 2^22457256 is an apocalyptic number.

It is an amenable number.

22457256 is an abundant number, since it is smaller than the sum of its proper divisors (33685944).

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

22457256 is a wasteful number, since it uses less digits than its factorization.

22457256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 935728 (or 935724 counting only the distinct ones).

The product of its digits is 33600, while the sum is 33.

The square root of 22457256 is about 4738.9087351415. The cubic root of 22457256 is about 282.1319235873.

The spelling of 22457256 in words is "twenty-two million, four hundred fifty-seven thousand, two hundred fifty-six".