304423019 has 2 divisors, whose sum is σ = 304423020. Its totient is φ = 304423018.

The previous prime is 304422977. The next prime is 304423027. The reversal of 304423019 is 910324403.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 304423019 - 2²⁴ = 287645803 is a prime.

It is a super-2 number, since 2×304423019² = 185346748994148722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (304423039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152211509 + 152211510.

It is an arithmetic number, because the mean of its divisors is an integer number (152211510).

Almost surely, 2^304423019 is an apocalyptic number.

304423019 is a deficient number, since it is larger than the sum of its proper divisors (1).

304423019 is an equidigital number, since it uses as much as digits as its factorization.

304423019 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 304423019 is about 17447.7224588197. The cubic root of 304423019 is about 672.7068182732.

The spelling of 304423019 in words is "three hundred four million, four hundred twenty-three thousand, nineteen".