318040 has 16 divisors (see below), whose sum is σ = 715680. Its totient is φ = 127200.

The previous prime is 318023. The next prime is 318077. The reversal of 318040 is 40813.

It is a super-2 number, since 2×318040² = 202298883200, which contains 22 as substring.

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 318040.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3936 + ... + 4015.

It is an arithmetic number, because the mean of its divisors is an integer number (44730).

2³¹⁸⁰⁴⁰ is an apocalyptic number.

It is an amenable number.

318040 is an abundant number, since it is smaller than the sum of its proper divisors (397640).

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

318040 is a wasteful number, since it uses less digits than its factorization.

318040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7962 (or 7958 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 318040 is about 563.9503524248. The cubic root of 318040 is about 68.2591037425.

Adding to 318040 its reverse (40813), we get a palindrome (358853).

The spelling of 318040 in words is "three hundred eighteen thousand, forty".