20874804 has 24 divisors (see below), whose sum is σ = 49183680. Its totient is φ = 6890304.

The previous prime is 20874779. The next prime is 20874817. The reversal of 20874804 is 40847802.

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, 7209 + ... + 9680.

It is an arithmetic number, because the mean of its divisors is an integer number (2049320).

Almost surely, 2^20874804 is an apocalyptic number.

It is an amenable number.

20874804 is an abundant number, since it is smaller than the sum of its proper divisors (28308876).

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

20874804 is a wasteful number, since it uses less digits than its factorization.

20874804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16999 (or 16997 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 33.

The square root of 20874804 is about 4568.8952712882. The cubic root of 20874804 is about 275.3430605616.

The spelling of 20874804 in words is "twenty million, eight hundred seventy-four thousand, eight hundred four".