304332013 has 2 divisors, whose sum is σ = 304332014. Its totient is φ = 304332012.

The previous prime is 304331983. The next prime is 304332019. The reversal of 304332013 is 310233403.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 175350564 + 128981449 = 13242^2 + 11357^2 .

It is an emirp because it is prime and its reverse (310233403) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 304332013 - 2⁵ = 304331981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (304332019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152166006 + 152166007.

It is an arithmetic number, because the mean of its divisors is an integer number (152166007).

Almost surely, 2^304332013 is an apocalyptic number.

It is an amenable number.

304332013 is a deficient number, since it is larger than the sum of its proper divisors (1).

304332013 is an equidigital number, since it uses as much as digits as its factorization.

304332013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 304332013 is about 17445.1143017178. The cubic root of 304332013 is about 672.6397772870.

Adding to 304332013 its reverse (310233403), we get a palindrome (614565416).

The spelling of 304332013 in words is "three hundred four million, three hundred thirty-two thousand, thirteen".