22972528 has 10 divisors (see below), whose sum is σ = 44509304. Its totient is φ = 11486256.

The previous prime is 22972517. The next prime is 22972529. The reversal of 22972528 is 82527922.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22972529) by changing a digit.

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 as a sum of consecutive naturals, namely, 717876 + ... + 717907.

Almost surely, 2^22972528 is an apocalyptic number.

It is an amenable number.

22972528 is a deficient number, since it is larger than the sum of its proper divisors (21536776).

22972528 is a wasteful number, since it uses less digits than its factorization.

22972528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1435791 (or 1435785 counting only the distinct ones).

The product of its digits is 40320, while the sum is 37.

The square root of 22972528 is about 4792.9665135488. The cubic root of 22972528 is about 284.2734257532.

The spelling of 22972528 in words is "twenty-two million, nine hundred seventy-two thousand, five hundred twenty-eight".