318479976 has 72 divisors (see below), whose sum is σ = 910410930. Its totient is φ = 100564416.

The previous prime is 318479971. The next prime is 318479977. The reversal of 318479976 is 679974813.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 273240900 + 45239076 = 16530^2 + 6726^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×318479976² = 202858990225921152, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (318479971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 19866 + ... + 32118.

Almost surely, 2^318479976 is an apocalyptic number.

318479976 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 318479976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (455205465).

318479976 is an abundant number, since it is smaller than the sum of its proper divisors (591930954).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

318479976 is a wasteful number, since it uses less digits than its factorization.

318479976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12303 (or 12277 counting only the distinct ones).

The product of its digits is 2286144, while the sum is 54.

The square root of 318479976 is about 17846.0072845441. The cubic root of 318479976 is about 682.9056574851.

The spelling of 318479976 in words is "three hundred eighteen million, four hundred seventy-nine thousand, nine hundred seventy-six".