304342919 has 2 divisors, whose sum is σ = 304342920. Its totient is φ = 304342918.

The previous prime is 304342901. The next prime is 304342939. The reversal of 304342919 is 919243403.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 304342919 - 2¹² = 304338823 is a prime.

It is a super-2 number, since 2×304342919² = 185249224690881122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (304342939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152171459 + 152171460.

It is an arithmetic number, because the mean of its divisors is an integer number (152171460).

Almost surely, 2^304342919 is an apocalyptic number.

304342919 is a deficient number, since it is larger than the sum of its proper divisors (1).

304342919 is an equidigital number, since it uses as much as digits as its factorization.

304342919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 304342919 is about 17445.4268792713. The cubic root of 304342919 is about 672.6478120664.

The spelling of 304342919 in words is "three hundred four million, three hundred forty-two thousand, nine hundred nineteen".