304499969 has 2 divisors, whose sum is σ = 304499970. Its totient is φ = 304499968.

The previous prime is 304499953. The next prime is 304500041. The reversal of 304499969 is 969994403.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 289000000 + 15499969 = 17000^2 + 3937^2 .

It is a cyclic number.

It is not a de Polignac number, because 304499969 - 2⁴ = 304499953 is a prime.

It is a super-2 number, since 2×304499969² = 185440462242001922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 304499969.

It is not a weakly prime, because it can be changed into another prime (304499929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152249984 + 152249985.

It is an arithmetic number, because the mean of its divisors is an integer number (152249985).

Almost surely, 2^304499969 is an apocalyptic number.

It is an amenable number.

304499969 is a deficient number, since it is larger than the sum of its proper divisors (1).

304499969 is an equidigital number, since it uses as much as digits as its factorization.

304499969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1889568, while the sum is 53.

The square root of 304499969 is about 17449.9274783593. The cubic root of 304499969 is about 672.7634942640.

The spelling of 304499969 in words is "three hundred four million, four hundred ninety-nine thousand, nine hundred sixty-nine".