319218994 has 8 divisors (see below), whose sum is σ = 481878828. Its totient is φ = 158592720.

The previous prime is 319218967. The next prime is 319219007. The reversal of 319218994 is 499812913.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 282676969 + 36542025 = 16813^2 + 6045^2 .

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

It is a super-2 number, since 2×319218994² = 203801532260744072, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 507997 + ... + 508624.

Almost surely, 2^319218994 is an apocalyptic number.

319218994 is a deficient number, since it is larger than the sum of its proper divisors (162659834).

319218994 is a wasteful number, since it uses less digits than its factorization.

319218994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016780.

The product of its digits is 139968, while the sum is 46.

The square root of 319218994 is about 17866.7007027039. The cubic root of 319218994 is about 683.4334664022.

The spelling of 319218994 in words is "three hundred nineteen million, two hundred eighteen thousand, nine hundred ninety-four".