204304 has 15 divisors (see below), whose sum is σ = 399373.
Its totient is φ = 101248.
The previous prime is 204301. The next prime is 204311. The reversal of 204304 is 403402.
204304 = T451 + T452.
The square root of 204304 is 452.
It is a perfect power (a square), and thus also a powerful number.
204304 is nontrivially palindromic in base 15.
It can be written as a sum of positive squares in only one way, i.e., 3600 + 200704 = 60^2 + 448^2
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (204301) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1752 + ... + 1864.
2204304 is an apocalyptic number.
204304 is the 452-nd square number.
It is an amenable number.
204304 is a deficient number, since it is larger than the sum of its proper divisors (195069).
204304 is an equidigital number, since it uses as much as digits as its factorization.
204304 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 234 (or 115 counting only the distinct ones).
The product of its (nonzero) digits is 96, while the sum is 13.
The cubic root of 204304 is about 58.8968801043.
Adding to 204304 its reverse (403402), we get a palindrome (607706).
The spelling of 204304 in words is "two hundred four thousand, three hundred four", and thus it is an iban number.