304040329 has 2 divisors, whose sum is σ = 304040330. Its totient is φ = 304040328.

The previous prime is 304040327. The next prime is 304040339. The reversal of 304040329 is 923040403.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 158886025 + 145154304 = 12605^2 + 12048^2 .

It is a cyclic number.

It is not a de Polignac number, because 304040329 - 2¹ = 304040327 is a prime.

Together with 304040327, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (304040327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152020164 + 152020165.

It is an arithmetic number, because the mean of its divisors is an integer number (152020165).

Almost surely, 2^304040329 is an apocalyptic number.

It is an amenable number.

304040329 is a deficient number, since it is larger than the sum of its proper divisors (1).

304040329 is an equidigital number, since it uses as much as digits as its factorization.

304040329 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 25.

The square root of 304040329 is about 17436.7522492005. The cubic root of 304040329 is about 672.4248136210.

The spelling of 304040329 in words is "three hundred four million, forty thousand, three hundred twenty-nine".