307018369 has 6 divisors (see below), whose sum is σ = 357143874. Its totient is φ = 263158560.

The previous prime is 307018337. The next prime is 307018391. The reversal of 307018369 is 963810703.

It can be written as a sum of positive squares in only one way, i.e., 284360769 + 22657600 = 16863^2 + 4760^2 .

It is not a de Polignac number, because 307018369 - 2⁵ = 307018337 is a prime.

It is a super-2 number, since 2×307018369² = 188520557806840322, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (307018319) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3132792 + ... + 3132889.

It is an arithmetic number, because the mean of its divisors is an integer number (59523979).

Almost surely, 2^307018369 is an apocalyptic number.

It is an amenable number.

307018369 is a deficient number, since it is larger than the sum of its proper divisors (50125505).

307018369 is an equidigital number, since it uses as much as digits as its factorization.

307018369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6265695 (or 6265688 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 307018369 is about 17521.9396471966. The cubic root of 307018369 is about 674.6131255399.

The spelling of 307018369 in words is "three hundred seven million, eighteen thousand, three hundred sixty-nine".