304009313 has 8 divisors (see below), whose sum is σ = 305867016. Its totient is φ = 302156800.

The previous prime is 304009289. The next prime is 304009333. The reversal of 304009313 is 313900403.

It can be written as a sum of positive squares in 4 ways, for example, as 134689 + 303874624 = 367^2 + 17432^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 304009313 - 2¹² = 304005217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (304009333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204533 + ... + 206013.

It is an arithmetic number, because the mean of its divisors is an integer number (38233377).

Almost surely, 2^304009313 is an apocalyptic number.

It is an amenable number.

304009313 is a deficient number, since it is larger than the sum of its proper divisors (1857703).

304009313 is a wasteful number, since it uses less digits than its factorization.

304009313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2595.

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 304009313 is about 17435.8628407085. The cubic root of 304009313 is about 672.4019475346.

Adding to 304009313 its reverse (313900403), we get a palindrome (617909716).

The spelling of 304009313 in words is "three hundred four million, nine thousand, three hundred thirteen".