318011492 has 12 divisors (see below), whose sum is σ = 556674300. Its totient is φ = 158961696.

The previous prime is 318011489. The next prime is 318011509. The reversal of 318011492 is 294110813.

It can be written as a sum of positive squares in 2 ways, for example, as 119596096 + 198415396 = 10936^2 + 14086^2 .

It is a super-2 number, since 2×318011492² = 202262618088132128, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9458 + ... + 26934.

It is an arithmetic number, because the mean of its divisors is an integer number (46389525).

Almost surely, 2^318011492 is an apocalyptic number.

It is an amenable number.

318011492 is a deficient number, since it is larger than the sum of its proper divisors (238662808).

318011492 is a wasteful number, since it uses less digits than its factorization.

318011492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22030 (or 22028 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 318011492 is about 17832.8767168957. The cubic root of 318011492 is about 682.5706417866.

The spelling of 318011492 in words is "three hundred eighteen million, eleven thousand, four hundred ninety-two".