318367940 has 72 divisors (see below), whose sum is σ = 739027800. Its totient is φ = 115118080.

The previous prime is 318367919. The next prime is 318367949. The reversal of 318367940 is 49763813.

318367940 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 117635716 + 200732224 = 10846^2 + 14168^2 .

It is not an unprimeable number, because it can be changed into a prime (318367949) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 708836 + ... + 709284.

It is an arithmetic number, because the mean of its divisors is an integer number (10264275).

Almost surely, 2^318367940 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 318367940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (369513900).

318367940 is an abundant number, since it is smaller than the sum of its proper divisors (420659860).

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

318367940 is a wasteful number, since it uses less digits than its factorization.

318367940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773 (or 760 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 318367940 is about 17842.8680430025. The cubic root of 318367940 is about 682.8255697795.

The spelling of 318367940 in words is "three hundred eighteen million, three hundred sixty-seven thousand, nine hundred forty".