20838882 has 32 divisors (see below), whose sum is σ = 43315200. Its totient is φ = 6676560.

The previous prime is 20838871. The next prime is 20838919. The reversal of 20838882 is 28883802.

It is a self number, because there is not a number n which added to its sum of digits gives 20838882.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36733 + ... + 37295.

It is an arithmetic number, because the mean of its divisors is an integer number (1353600).

Almost surely, 2^20838882 is an apocalyptic number.

20838882 is an abundant number, since it is smaller than the sum of its proper divisors (22476318).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20838882 is a wasteful number, since it uses less digits than its factorization.

20838882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798.

The product of its (nonzero) digits is 49152, while the sum is 39.

The square root of 20838882 is about 4564.9624313898. The cubic root of 20838882 is about 275.1850302977.

The spelling of 20838882 in words is "twenty million, eight hundred thirty-eight thousand, eight hundred eighty-two".