20904352 has 24 divisors (see below), whose sum is σ = 47035296. Its totient is φ = 8958912.

The previous prime is 20904343. The next prime is 20904391. The reversal of 20904352 is 25340902.

It is a happy number.

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, 46438 + ... + 46885.

It is an arithmetic number, because the mean of its divisors is an integer number (1959804).

Almost surely, 2^20904352 is an apocalyptic number.

It is an amenable number.

20904352 is an abundant number, since it is smaller than the sum of its proper divisors (26130944).

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

20904352 is an equidigital number, since it uses as much as digits as its factorization.

20904352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93340 (or 93332 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 20904352 is about 4572.1277322490. The cubic root of 20904352 is about 275.4729140930.

The spelling of 20904352 in words is "twenty million, nine hundred four thousand, three hundred fifty-two".