318340928 has 42 divisors (see below), whose sum is σ = 640608066. Its totient is φ = 156958464.

The previous prime is 318340927. The next prime is 318340937. The reversal of 318340928 is 829043813.

318340928 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 only one way, i.e., 270010624 + 48330304 = 16432^2 + 6952^2 .

It is a junction number, because it is equal to n+sod(n) for n = 318340891 and 318340900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (318340927) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 399026 + ... + 399822.

It is an arithmetic number, because the mean of its divisors is an integer number (15252573).

Almost surely, 2^318340928 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 318340928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (320304033).

318340928 is an abundant number, since it is smaller than the sum of its proper divisors (322267138).

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

318340928 is an frugal number, since it uses more digits than its factorization.

318340928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 967 (or 878 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 318340928 is about 17842.1110858553. Note that the first 3 decimals coincide. The cubic root of 318340928 is about 682.8062577366.

The spelling of 318340928 in words is "three hundred eighteen million, three hundred forty thousand, nine hundred twenty-eight".