306304969 has 4 divisors (see below), whose sum is σ = 312822144. Its totient is φ = 299787796.

The previous prime is 306304937. The next prime is 306304991. The reversal of 306304969 is 969403603.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 306304969 - 2⁵ = 306304937 is a prime.

It is a super-2 number, since 2×306304969² = 187645468068181922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (306304169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3258517 + ... + 3258610.

It is an arithmetic number, because the mean of its divisors is an integer number (78205536).

Almost surely, 2^306304969 is an apocalyptic number.

It is an amenable number.

306304969 is a deficient number, since it is larger than the sum of its proper divisors (6517175).

306304969 is an equidigital number, since it uses as much as digits as its factorization.

306304969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6517174.

The product of its (nonzero) digits is 104976, while the sum is 40.

The square root of 306304969 is about 17501.5704723890. The cubic root of 306304969 is about 674.0902010729.

The spelling of 306304969 in words is "three hundred six million, three hundred four thousand, nine hundred sixty-nine".