20800688 has 20 divisors (see below), whose sum is σ = 40674480. Its totient is φ = 10304064.

The previous prime is 20800679. The next prime is 20800699. The reversal of 20800688 is 88600802.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4220 + ... + 7707.

It is an arithmetic number, because the mean of its divisors is an integer number (2033724).

Almost surely, 2^20800688 is an apocalyptic number.

It is an amenable number.

20800688 is a deficient number, since it is larger than the sum of its proper divisors (19873792).

20800688 is a wasteful number, since it uses less digits than its factorization.

20800688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12044 (or 12038 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 20800688 is about 4560.7771267625. Note that the first 3 decimals coincide. The cubic root of 20800688 is about 275.0168055845.

The spelling of 20800688 in words is "twenty million, eight hundred thousand, six hundred eighty-eight".