204102204 has 72 divisors (see below), whose sum is σ = 510086640. Its totient is φ = 63504384.

The previous prime is 204102191. The next prime is 204102257. The reversal of 204102204 is 402201402.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 794044 + ... + 794300.

Almost surely, 2^204102204 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204102204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (255043320).

204102204 is an abundant number, since it is smaller than the sum of its proper divisors (305984436).

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

204102204 is a wasteful number, since it uses less digits than its factorization.

204102204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527 (or 508 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 204102204 is about 14286.4342647142. The cubic root of 204102204 is about 588.7748242561.

Adding to 204102204 its reverse (402201402), we get a palindrome (606303606).

The spelling of 204102204 in words is "two hundred four million, one hundred two thousand, two hundred four".