318220996 has 12 divisors (see below), whose sum is σ = 562092048. Its totient is φ = 157623272.

The previous prime is 318220993. The next prime is 318220999. The reversal of 318220996 is 699022813.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (318220993) and next prime (318220999).

It is not an unprimeable number, because it can be changed into a prime (318220993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 371326 + ... + 372181.

It is an arithmetic number, because the mean of its divisors is an integer number (46841004).

Almost surely, 2^318220996 is an apocalyptic number.

It is an amenable number.

318220996 is a deficient number, since it is larger than the sum of its proper divisors (243871052).

318220996 is a wasteful number, since it uses less digits than its factorization.

318220996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743618 (or 743616 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 318220996 is about 17838.7498440894. The cubic root of 318220996 is about 682.7204999857.

The spelling of 318220996 in words is "three hundred eighteen million, two hundred twenty thousand, nine hundred ninety-six".