304312399 has 16 divisors (see below), whose sum is σ = 329483520. Its totient is φ = 280385280.

The previous prime is 304312397. The next prime is 304312403. The reversal of 304312399 is 993213403.

It is a cyclic number.

It is not a de Polignac number, because 304312399 - 2¹ = 304312397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304312391) 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 15 ways as a sum of consecutive naturals, for example, 63309 + ... + 67945.

It is an arithmetic number, because the mean of its divisors is an integer number (20592720).

Almost surely, 2^304312399 is an apocalyptic number.

304312399 is a deficient number, since it is larger than the sum of its proper divisors (25171121).

304312399 is a wasteful number, since it uses less digits than its factorization.

304312399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4770.

The product of its (nonzero) digits is 17496, while the sum is 34.

The square root of 304312399 is about 17444.5521295332. The cubic root of 304312399 is about 672.6253265781.

The spelling of 304312399 in words is "three hundred four million, three hundred twelve thousand, three hundred ninety-nine".