307434869 has 18 divisors (see below), whose sum is σ = 361393110. Its totient is φ = 260768592.

The previous prime is 307434863. The next prime is 307434893. The reversal of 307434869 is 968434703.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 228402769 + 79032100 = 15113^2 + 8890^2 .

It is not a de Polignac number, because 307434869 - 2²⁰ = 306386293 is a prime.

It is a super-2 number, since 2×307434869² = 189032397354094322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (307434863) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 790127 + ... + 790515.

It is an arithmetic number, because the mean of its divisors is an integer number (20077395).

Almost surely, 2^307434869 is an apocalyptic number.

It is an amenable number.

307434869 is a deficient number, since it is larger than the sum of its proper divisors (53958241).

307434869 is an equidigital number, since it uses as much as digits as its factorization.

307434869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657 (or 523 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 44.

The square root of 307434869 is about 17533.8207188279. The cubic root of 307434869 is about 674.9180469319.

The spelling of 307434869 in words is "three hundred seven million, four hundred thirty-four thousand, eight hundred sixty-nine".