204304459 has 4 divisors (see below), whose sum is σ = 204575104. Its totient is φ = 204033816.

The previous prime is 204304447. The next prime is 204304483. The reversal of 204304459 is 954403402.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 204304459 - 2⁵ = 204304427 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 204304459.

It is not an unprimeable number, because it can be changed into a prime (204304439) 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, 134187 + ... + 135700.

It is an arithmetic number, because the mean of its divisors is an integer number (51143776).

Almost surely, 2^204304459 is an apocalyptic number.

204304459 is a deficient number, since it is larger than the sum of its proper divisors (270645).

204304459 is an equidigital number, since it uses as much as digits as its factorization.

204304459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270644.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 204304459 is about 14293.5110802070. The cubic root of 204304459 is about 588.9692421121.

The spelling of 204304459 in words is "two hundred four million, three hundred four thousand, four hundred fifty-nine".