20572632 has 24 divisors (see below), whose sum is σ = 55717740. Its totient is φ = 6857520.

The previous prime is 20572613. The next prime is 20572661. The reversal of 20572632 is 23627502.

20572632 is a `hidden beast` number, since 20 + 5 + 7 + 2 + 632 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 20572596 and 20572605.

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, 142794 + ... + 142937.

Almost surely, 2^20572632 is an apocalyptic number.

It is an amenable number.

20572632 is an abundant number, since it is smaller than the sum of its proper divisors (35145108).

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

20572632 is a wasteful number, since it uses less digits than its factorization.

20572632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285743 (or 285736 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 20572632 is about 4535.7063397006. The cubic root of 20572632 is about 274.0080271859.

The spelling of 20572632 in words is "twenty million, five hundred seventy-two thousand, six hundred thirty-two".