204403304 has 64 divisors (see below), whose sum is σ = 450672000. Its totient is φ = 86873472.

The previous prime is 204403271. The next prime is 204403307. The reversal of 204403304 is 403304402.

It is a happy number.

204403304 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×204403304² = 83561421372232832, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204403307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 447044 + ... + 447500.

It is an arithmetic number, because the mean of its divisors is an integer number (7041750).

Almost surely, 2^204403304 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 204403304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (225336000).

204403304 is an abundant number, since it is smaller than the sum of its proper divisors (246268696).

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

204403304 is a wasteful number, since it uses less digits than its factorization.

204403304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647 (or 629 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 204403304 is about 14296.9683499685. The cubic root of 204403304 is about 589.0642103096.

Adding to 204403304 its reverse (403304402), we get a palindrome (607707706).

The spelling of 204403304 in words is "two hundred four million, four hundred three thousand, three hundred four".