304400313 has 12 divisors (see below), whose sum is σ = 502502208. Its totient is φ = 173943000.

The previous prime is 304400281. The next prime is 304400321. The reversal of 304400313 is 313004403.

It is not a de Polignac number, because 304400313 - 2⁵ = 304400281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (304400323) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2415813 + ... + 2415938.

It is an arithmetic number, because the mean of its divisors is an integer number (41875184).

Almost surely, 2^304400313 is an apocalyptic number.

It is an amenable number.

304400313 is a deficient number, since it is larger than the sum of its proper divisors (198101895).

304400313 is a wasteful number, since it uses less digits than its factorization.

304400313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4831764 (or 4831761 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 304400313 is about 17447.0717600404. The cubic root of 304400313 is about 672.6900927960.

Adding to 304400313 its reverse (313004403), we get a palindrome (617404716).

The spelling of 304400313 in words is "three hundred four million, four hundred thousand, three hundred thirteen".