318491234 has 8 divisors (see below), whose sum is σ = 477833580. Its totient is φ = 159213376.

The previous prime is 318491219. The next prime is 318491269. The reversal of 318491234 is 432194813.

It can be written as a sum of positive squares in 2 ways, for example, as 279391225 + 39100009 = 16715^2 + 6253^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×318491234² = 202873332269685512, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 318491194 and 318491203.

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, 899 + ... + 25254.

Almost surely, 2^318491234 is an apocalyptic number.

318491234 is a deficient number, since it is larger than the sum of its proper divisors (159342346).

318491234 is a wasteful number, since it uses less digits than its factorization.

318491234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32244.

The product of its digits is 20736, while the sum is 35.

The square root of 318491234 is about 17846.3227024505. The cubic root of 318491234 is about 682.9137041043.

The spelling of 318491234 in words is "three hundred eighteen million, four hundred ninety-one thousand, two hundred thirty-four".