20879292 has 36 divisors (see below), whose sum is σ = 56673960. Its totient is φ = 5965344.

The previous prime is 20879251. The next prime is 20879303. The reversal of 20879292 is 29297802.

It is a self number, because there is not a number n which added to its sum of digits gives 20879292.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17167 + ... + 18342.

Almost surely, 2^20879292 is an apocalyptic number.

It is an amenable number.

20879292 is an abundant number, since it is smaller than the sum of its proper divisors (35794668).

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

20879292 is a wasteful number, since it uses less digits than its factorization.

20879292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35530 (or 35521 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 20879292 is about 4569.3863920662. The cubic root of 20879292 is about 275.3627917027.

The spelling of 20879292 in words is "twenty million, eight hundred seventy-nine thousand, two hundred ninety-two".