22057532 has 12 divisors (see below), whose sum is σ = 44115120. Its totient is φ = 9453216.

The previous prime is 22057531. The next prime is 22057543. The reversal of 22057532 is 23575022.

22057532 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22057531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 393857 + ... + 393912.

It is an arithmetic number, because the mean of its divisors is an integer number (3676260).

Almost surely, 2^22057532 is an apocalyptic number.

It is an amenable number.

22057532 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22057532 is a wasteful number, since it uses less digits than its factorization.

22057532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787780 (or 787778 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 26.

The square root of 22057532 is about 4696.5446873207. The cubic root of 22057532 is about 280.4479733791.

The spelling of 22057532 in words is "twenty-two million, fifty-seven thousand, five hundred thirty-two".