20183204 has 12 divisors (see below), whose sum is σ = 36275484. Its totient is φ = 9818784.

The previous prime is 20183197. The next prime is 20183209. The reversal of 20183204 is 40238102.

It can be written as a sum of positive squares in 2 ways, for example, as 17623204 + 2560000 = 4198^2 + 1600^2 .

It is not an unprimeable number, because it can be changed into a prime (20183209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68039 + ... + 68334.

It is an arithmetic number, because the mean of its divisors is an integer number (3022957).

Almost surely, 2^20183204 is an apocalyptic number.

It is an amenable number.

20183204 is a deficient number, since it is larger than the sum of its proper divisors (16092280).

20183204 is a wasteful number, since it uses less digits than its factorization.

20183204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136414 (or 136412 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 20183204 is about 4492.5720917977. The cubic root of 20183204 is about 272.2680640154.

The spelling of 20183204 in words is "twenty million, one hundred eighty-three thousand, two hundred four".