20056838 has 16 divisors (see below), whose sum is σ = 31939920. Its totient is φ = 9413376.

The previous prime is 20056811. The next prime is 20056847. The reversal of 20056838 is 83865002.

It is a Curzon number.

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, 20570 + ... + 21522.

It is an arithmetic number, because the mean of its divisors is an integer number (1996245).

Almost surely, 2^20056838 is an apocalyptic number.

20056838 is a deficient number, since it is larger than the sum of its proper divisors (11883082).

20056838 is a wasteful number, since it uses less digits than its factorization.

20056838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1591.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 20056838 is about 4478.4861281464. The cubic root of 20056838 is about 271.6986552385.

The spelling of 20056838 in words is "twenty million, fifty-six thousand, eight hundred thirty-eight".