304949219 has 2 divisors, whose sum is σ = 304949220. Its totient is φ = 304949218.

The previous prime is 304949149. The next prime is 304949231. The reversal of 304949219 is 912949403.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-304949219 is a prime.

It is a super-2 number, since 2×304949219² = 185988052337419922, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (304949119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152474609 + 152474610.

It is an arithmetic number, because the mean of its divisors is an integer number (152474610).

Almost surely, 2^304949219 is an apocalyptic number.

304949219 is a deficient number, since it is larger than the sum of its proper divisors (1).

304949219 is an equidigital number, since it uses as much as digits as its factorization.

304949219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 304949219 is about 17462.7952802522. The cubic root of 304949219 is about 673.0941899555.

The spelling of 304949219 in words is "three hundred four million, nine hundred forty-nine thousand, two hundred nineteen".