20888836 has 12 divisors (see below), whose sum is σ = 36626128. Its totient is φ = 10424232.

The previous prime is 20888797. The next prime is 20888863. The reversal of 20888836 is 63888802.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 20888792 and 20888801.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2586 + ... + 6961.

Almost surely, 2^20888836 is an apocalyptic number.

It is an amenable number.

20888836 is a deficient number, since it is larger than the sum of its proper divisors (15737292).

20888836 is a wasteful number, since it uses less digits than its factorization.

20888836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10098 (or 10096 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 43.

The square root of 20888836 is about 4570.4306142857. The cubic root of 20888836 is about 275.4047417547.

The spelling of 20888836 in words is "twenty million, eight hundred eighty-eight thousand, eight hundred thirty-six".