20572924 has 24 divisors (see below), whose sum is σ = 38525760. Its totient is φ = 9578496.

The previous prime is 20572913. The next prime is 20572931. The reversal of 20572924 is 42927502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5037 + ... + 8155.

It is an arithmetic number, because the mean of its divisors is an integer number (1605240).

Almost surely, 2^20572924 is an apocalyptic number.

It is an amenable number.

20572924 is a deficient number, since it is larger than the sum of its proper divisors (17952836).

20572924 is a wasteful number, since it uses less digits than its factorization.

20572924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3237 (or 3235 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 20572924 is about 4535.7385286191. The cubic root of 20572924 is about 274.0093235679.

The spelling of 20572924 in words is "twenty million, five hundred seventy-two thousand, nine hundred twenty-four".