402304319 has 2 divisors, whose sum is σ = 402304320. Its totient is φ = 402304318.

The previous prime is 402304307. The next prime is 402304363. The reversal of 402304319 is 913403204.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-402304319 is a prime.

It is a super-2 number, since 2×402304319² = 323697530172107522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402309319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201152159 + 201152160.

It is an arithmetic number, because the mean of its divisors is an integer number (201152160).

Almost surely, 2^402304319 is an apocalyptic number.

402304319 is a deficient number, since it is larger than the sum of its proper divisors (1).

402304319 is an equidigital number, since it uses as much as digits as its factorization.

402304319 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 402304319 is about 20057.5252461514. The cubic root of 402304319 is about 738.2184554384.

The spelling of 402304319 in words is "four hundred two million, three hundred four thousand, three hundred nineteen".