20832804 has 18 divisors (see below), whose sum is σ = 52660790. Its totient is φ = 6944256.

The previous prime is 20832767. The next prime is 20832821. The reversal of 20832804 is 40823802.

It can be written as a sum of positive squares in only one way, i.e., 20793600 + 39204 = 4560^2 + 198^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 289309 + ... + 289380.

Almost surely, 2^20832804 is an apocalyptic number.

It is an amenable number.

20832804 is an abundant number, since it is smaller than the sum of its proper divisors (31827986).

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

20832804 is a wasteful number, since it uses less digits than its factorization.

20832804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578699 (or 578694 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 20832804 is about 4564.2966599466. The cubic root of 20832804 is about 275.1582736279.

The spelling of 20832804 in words is "twenty million, eight hundred thirty-two thousand, eight hundred four".