20882904 has 32 divisors (see below), whose sum is σ = 59665920. Its totient is φ = 5966496.

The previous prime is 20882893. The next prime is 20882909. The reversal of 20882904 is 40928802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20882909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61984 + ... + 62319.

It is an arithmetic number, because the mean of its divisors is an integer number (1864560).

Almost surely, 2^20882904 is an apocalyptic number.

20882904 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20882904 is an abundant number, since it is smaller than the sum of its proper divisors (38783016).

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

20882904 is a wasteful number, since it uses less digits than its factorization.

20882904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124319 (or 124315 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 20882904 is about 4569.7816140380. The cubic root of 20882904 is about 275.3786695248.

The spelling of 20882904 in words is "twenty million, eight hundred eighty-two thousand, nine hundred four".