20568872 has 16 divisors (see below), whose sum is σ = 39811200. Its totient is φ = 9952560.

The previous prime is 20568871. The next prime is 20568881. The reversal of 20568872 is 27886502.

It is not an unprimeable number, because it can be changed into a prime (20568871) 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, 41222 + ... + 41717.

It is an arithmetic number, because the mean of its divisors is an integer number (2488200).

Almost surely, 2^20568872 is an apocalyptic number.

It is an amenable number.

20568872 is a deficient number, since it is larger than the sum of its proper divisors (19242328).

20568872 is a wasteful number, since it uses less digits than its factorization.

20568872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82976 (or 82972 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 20568872 is about 4535.2918318450. The cubic root of 20568872 is about 273.9913329526.

The spelling of 20568872 in words is "twenty million, five hundred sixty-eight thousand, eight hundred seventy-two".