304042439 has 2 divisors, whose sum is σ = 304042440. Its totient is φ = 304042438.

The previous prime is 304042381. The next prime is 304042447. The reversal of 304042439 is 934240403.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-304042439 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (304042139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152021219 + 152021220.

It is an arithmetic number, because the mean of its divisors is an integer number (152021220).

Almost surely, 2^304042439 is an apocalyptic number.

304042439 is a deficient number, since it is larger than the sum of its proper divisors (1).

304042439 is an equidigital number, since it uses as much as digits as its factorization.

304042439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 304042439 is about 17436.8127534822. The cubic root of 304042439 is about 672.4263691307.

The spelling of 304042439 in words is "three hundred four million, forty-two thousand, four hundred thirty-nine".