318930629 has 6 divisors (see below), whose sum is σ = 322269714. Its totient is φ = 315595200.

The previous prime is 318930593. The next prime is 318930683. The reversal of 318930629 is 926039813.

It can be written as a sum of positive squares in 3 ways, for example, as 130005604 + 188925025 = 11402^2 + 13745^2 .

It is not a de Polignac number, because 318930629 - 2²⁰ = 317882053 is a prime.

It is a super-2 number, since 2×318930629² = 203433492228671282, 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 (318930229) 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, 178589 + ... + 180365.

It is an arithmetic number, because the mean of its divisors is an integer number (53711619).

Almost surely, 2^318930629 is an apocalyptic number.

It is an amenable number.

318930629 is a deficient number, since it is larger than the sum of its proper divisors (3339085).

318930629 is an frugal number, since it uses more digits than its factorization.

318930629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3655 (or 1878 counting only the distinct ones).

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

The square root of 318930629 is about 17858.6289787318. The cubic root of 318930629 is about 683.2276122516.

The spelling of 318930629 in words is "three hundred eighteen million, nine hundred thirty thousand, six hundred twenty-nine".