318448 has 20 divisors (see below), whose sum is σ = 664888. Its totient is φ = 146880.

The previous prime is 318443. The next prime is 318457. The reversal of 318448 is 844813.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (318443) by changing a digit.

318448 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 558 + ... + 973.

2³¹⁸⁴⁴⁸ is an apocalyptic number.

It is an amenable number.

318448 is an abundant number, since it is smaller than the sum of its proper divisors (346440).

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

318448 is a wasteful number, since it uses less digits than its factorization.

318448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1552 (or 1546 counting only the distinct ones).

The product of its digits is 3072, while the sum is 28.

The square root of 318448 is about 564.3119704561. The cubic root of 318448 is about 68.2882801708.

The spelling of 318448 in words is "three hundred eighteen thousand, four hundred forty-eight".