22057956 has 36 divisors (see below), whose sum is σ = 56056000. Its totient is φ = 7313328.

The previous prime is 22057949. The next prime is 22057961. The reversal of 22057956 is 65975022.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 22057956.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5625 + ... + 8703.

Almost surely, 2^22057956 is an apocalyptic number.

It is an amenable number.

22057956 is an abundant number, since it is smaller than the sum of its proper divisors (33998044).

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

22057956 is a wasteful number, since it uses less digits than its factorization.

22057956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3288 (or 3283 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 22057956 is about 4696.5898266721. The cubic root of 22057956 is about 280.4497703342.

The spelling of 22057956 in words is "twenty-two million, fifty-seven thousand, nine hundred fifty-six".