318949000 has 32 divisors (see below), whose sum is σ = 746343000. Its totient is φ = 127579200.

The previous prime is 318948977. The next prime is 318949009. The reversal of 318949000 is 949813.

It can be written as a sum of positive squares in 4 ways, for example, as 88698724 + 230250276 = 9418^2 + 15174^2 .

It is not an unprimeable number, because it can be changed into a prime (318949009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158475 + ... + 160474.

Almost surely, 2^318949000 is an apocalyptic number.

It is an amenable number.

318949000 is an abundant number, since it is smaller than the sum of its proper divisors (427394000).

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

318949000 is a wasteful number, since it uses less digits than its factorization.

318949000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318970 (or 318956 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 318949000 is about 17859.1433165200. The cubic root of 318949000 is about 683.2407303954.

The spelling of 318949000 in words is "three hundred eighteen million, nine hundred forty-nine thousand".