20104936 has 16 divisors (see below), whose sum is σ = 37866240. Its totient is φ = 10007280.

The previous prime is 20104933. The next prime is 20104939. The reversal of 20104936 is 63940102.

It is an interprime number because it is at equal distance from previous prime (20104933) and next prime (20104939).

It is a self number, because there is not a number n which added to its sum of digits gives 20104936.

It is not an unprimeable number, because it can be changed into a prime (20104933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3720 + ... + 7351.

It is an arithmetic number, because the mean of its divisors is an integer number (2366640).

Almost surely, 2^20104936 is an apocalyptic number.

It is an amenable number.

20104936 is a deficient number, since it is larger than the sum of its proper divisors (17761304).

20104936 is a wasteful number, since it uses less digits than its factorization.

20104936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11304 (or 11300 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 20104936 is about 4483.8528075752. The cubic root of 20104936 is about 271.9156673389.

The spelling of 20104936 in words is "twenty million, one hundred four thousand, nine hundred thirty-six".