20056828 has 24 divisors (see below), whose sum is σ = 39957120. Its totient is φ = 8719920.

The previous prime is 20056811. The next prime is 20056847. The reversal of 20056828 is 82865002.

It is a self number, because there is not a number n which added to its sum of digits gives 20056828.

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, 8898 + ... + 10921.

It is an arithmetic number, because the mean of its divisors is an integer number (1664880).

Almost surely, 2^20056828 is an apocalyptic number.

It is an amenable number.

20056828 is a deficient number, since it is larger than the sum of its proper divisors (19900292).

20056828 is a wasteful number, since it uses less digits than its factorization.

20056828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19857 (or 19855 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 20056828 is about 4478.4850116976. The cubic root of 20056828 is about 271.6986100837.

The spelling of 20056828 in words is "twenty million, fifty-six thousand, eight hundred twenty-eight".