318648 has 64 divisors (see below), whose sum is σ = 933120. Its totient is φ = 89600.

The previous prime is 318641. The next prime is 318653. The reversal of 318648 is 846813.

318648 = T₅₇ + T₅₈ + ... + T₁₂₇.

It is a happy number.

318648 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is an Ulam number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 318648.

It is not an unprimeable number, because it can be changed into a prime (318641) by changing a digit.

318648 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4453 + ... + 4523.

It is an arithmetic number, because the mean of its divisors is an integer number (14580).

2³¹⁸⁶⁴⁸ 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 318648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (466560).

318648 is an abundant number, since it is smaller than the sum of its proper divisors (614472).

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

318648 is a wasteful number, since it uses less digits than its factorization.

318648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108 (or 104 counting only the distinct ones).

The product of its digits is 4608, while the sum is 30.

The square root of 318648 is about 564.4891495857. The cubic root of 318648 is about 68.3025732399.

The spelling of 318648 in words is "three hundred eighteen thousand, six hundred forty-eight".