204424313 has 4 divisors (see below), whose sum is σ = 204480420. Its totient is φ = 204368208.

The previous prime is 204424247. The next prime is 204424357. The reversal of 204424313 is 313424402.

204424313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 61669609 + 142754704 = 7853^2 + 11948^2 .

It is a cyclic number.

It is not a de Polignac number, because 204424313 - 2⁸ = 204424057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204424373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22178 + ... + 30011.

It is an arithmetic number, because the mean of its divisors is an integer number (51120105).

Almost surely, 2^204424313 is an apocalyptic number.

It is an amenable number.

204424313 is a deficient number, since it is larger than the sum of its proper divisors (56107).

204424313 is an equidigital number, since it uses as much as digits as its factorization.

204424313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56106.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 204424313 is about 14297.7030672762. The cubic root of 204424313 is about 589.0843913696.

Adding to 204424313 its reverse (313424402), we get a palindrome (517848715).

The spelling of 204424313 in words is "two hundred four million, four hundred twenty-four thousand, three hundred thirteen".