318897650 has 12 divisors (see below), whose sum is σ = 593149722. Its totient is φ = 127559040.

The previous prime is 318897637. The next prime is 318897671. The reversal of 318897650 is 56798813.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 213773641 + 105124009 = 14621^2 + 10253^2 .

It is a super-2 number, since 2×318897650² = 203391422351045000, which contains 22 as substring.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 318897595 and 318897604.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3188927 + ... + 3189026.

Almost surely, 2^318897650 is an apocalyptic number.

318897650 is a deficient number, since it is larger than the sum of its proper divisors (274252072).

318897650 is a wasteful number, since it uses less digits than its factorization.

318897650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6377965 (or 6377960 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 47.

The square root of 318897650 is about 17857.7056197038. The cubic root of 318897650 is about 683.2040617383.

The spelling of 318897650 in words is "three hundred eighteen million, eight hundred ninety-seven thousand, six hundred fifty".