20575936 has 28 divisors (see below), whose sum is σ = 42981880. Its totient is φ = 9745920.

The previous prime is 20575897. The next prime is 20575937. The reversal of 20575936 is 63957502.

It is a junction number, because it is equal to n+sod(n) for n = 20575895 and 20575904.

It is not an unprimeable number, because it can be changed into a prime (20575937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7245 + ... + 9676.

Almost surely, 2^20575936 is an apocalyptic number.

It is an amenable number.

20575936 is an abundant number, since it is smaller than the sum of its proper divisors (22405944).

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

20575936 is a wasteful number, since it uses less digits than its factorization.

20575936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16952 (or 16942 counting only the distinct ones).

The product of its (nonzero) digits is 56700, while the sum is 37.

The square root of 20575936 is about 4536.0705461886. The cubic root of 20575936 is about 274.0226951205.

The spelling of 20575936 in words is "twenty million, five hundred seventy-five thousand, nine hundred thirty-six".