318629768 has 12 divisors (see below), whose sum is σ = 597525495. Its totient is φ = 159289640.

The previous prime is 318629761. The next prime is 318629777. The reversal of 318629768 is 867926813.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 159314884 + 159314884 = 12622^2 + 12622^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=12622.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (318629761) 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 2 ways as a sum of consecutive naturals, for example, 47333 + ... + 53643.

Almost surely, 2^318629768 is an apocalyptic number.

It is an amenable number.

318629768 is a deficient number, since it is larger than the sum of its proper divisors (278895727).

318629768 is an frugal number, since it uses more digits than its factorization.

318629768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12628 (or 6313 counting only the distinct ones).

The product of its digits is 870912, while the sum is 50.

The square root of 318629768 is about 17850.2035842732. The cubic root of 318629768 is about 683.0127053151.

Multiplying 318629768 by its sum of digits (50), we get a square (15931488400 = 126220²).

The spelling of 318629768 in words is "three hundred eighteen million, six hundred twenty-nine thousand, seven hundred sixty-eight".