20752868 has 12 divisors (see below), whose sum is σ = 36352512. Its totient is φ = 10366440.

The previous prime is 20752843. The next prime is 20752873. The reversal of 20752868 is 86825702.

It is an unprimeable number.

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, 4121 + ... + 7647.

It is an arithmetic number, because the mean of its divisors is an integer number (3029376).

Almost surely, 2^20752868 is an apocalyptic number.

It is an amenable number.

20752868 is a deficient number, since it is larger than the sum of its proper divisors (15599644).

20752868 is a wasteful number, since it uses less digits than its factorization.

20752868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5002 (or 5000 counting only the distinct ones).

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

The square root of 20752868 is about 4555.5315825927. The cubic root of 20752868 is about 274.8058927748.

The spelling of 20752868 in words is "twenty million, seven hundred fifty-two thousand, eight hundred sixty-eight".