22457856 has 40 divisors (see below), whose sum is σ = 59833224. Its totient is φ = 7485440.

The previous prime is 22457843. The next prime is 22457863. The reversal of 22457856 is 65875422.

It is a super-2 number, since 2×22457856² = 1008710592233472, which contains 22 as substring.

It is a congruent number.

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, 5775 + ... + 8846.

Almost surely, 2^22457856 is an apocalyptic number.

It is an amenable number.

22457856 is an abundant number, since it is smaller than the sum of its proper divisors (37375368).

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

22457856 is an equidigital number, since it uses as much as digits as its factorization.

22457856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14642 (or 14626 counting only the distinct ones).

The product of its digits is 134400, while the sum is 39.

The square root of 22457856 is about 4738.9720404324. The cubic root of 22457856 is about 282.1344361775.

It can be divided in two parts, 2245 and 7856, that added together give a palindrome (10101).

The spelling of 22457856 in words is "twenty-two million, four hundred fifty-seven thousand, eight hundred fifty-six".