22657012 has 18 divisors (see below), whose sum is σ = 46123602. Its totient is φ = 9710064.

The previous prime is 22657009. The next prime is 22657043. The reversal of 22657012 is 21075622.

It can be written as a sum of positive squares in only one way, i.e., 22524516 + 132496 = 4746^2 + 364^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 57603 + ... + 57994.

Almost surely, 2^22657012 is an apocalyptic number.

It is an amenable number.

22657012 is an abundant number, since it is smaller than the sum of its proper divisors (23466590).

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

22657012 is a wasteful number, since it uses less digits than its factorization.

22657012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115615 (or 115606 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 22657012 is about 4759.9382348934. The cubic root of 22657012 is about 282.9659712609.

The spelling of 22657012 in words is "twenty-two million, six hundred fifty-seven thousand, twelve".