20056836 has 24 divisors (see below), whose sum is σ = 47393920. Its totient is φ = 6600672.

The previous prime is 20056811. The next prime is 20056847. The reversal of 20056836 is 63865002.

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, 9631 + ... + 11526.

Almost surely, 2^20056836 is an apocalyptic number.

It is an amenable number.

20056836 is an abundant number, since it is smaller than the sum of its proper divisors (27337084).

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

20056836 is a wasteful number, since it uses less digits than its factorization.

20056836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21243 (or 21241 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 20056836 is about 4478.4859048567. The cubic root of 20056836 is about 271.6986462075.

The spelling of 20056836 in words is "twenty million, fifty-six thousand, eight hundred thirty-six".