20056268 has 12 divisors (see below), whose sum is σ = 35133000. Its totient is φ = 10018272.

The previous prime is 20056259. The next prime is 20056291. The reversal of 20056268 is 86265002.

It is a self number, because there is not a number n which added to its sum of digits gives 20056268.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3983 + ... + 7481.

It is an arithmetic number, because the mean of its divisors is an integer number (2927750).

Almost surely, 2^20056268 is an apocalyptic number.

It is an amenable number.

20056268 is a deficient number, since it is larger than the sum of its proper divisors (15076732).

20056268 is a wasteful number, since it uses less digits than its factorization.

20056268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4936 (or 4934 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 20056268 is about 4478.4224901186. The cubic root of 20056268 is about 271.6960813914.

The spelling of 20056268 in words is "twenty million, fifty-six thousand, two hundred sixty-eight".