318412 has 12 divisors (see below), whose sum is σ = 581616. Its totient is φ = 152240.

The previous prime is 318407. The next prime is 318419. The reversal of 318412 is 214813.

It is a self number, because there is not a number n which added to its sum of digits gives 318412.

It is not an unprimeable number, because it can be changed into a prime (318419) by changing a digit.

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, 1639 + ... + 1822.

It is an arithmetic number, because the mean of its divisors is an integer number (48468).

2³¹⁸⁴¹² is an apocalyptic number.

It is an amenable number.

318412 is a deficient number, since it is larger than the sum of its proper divisors (263204).

318412 is a wasteful number, since it uses less digits than its factorization.

318412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3488 (or 3486 counting only the distinct ones).

The product of its digits is 192, while the sum is 19.

The square root of 318412 is about 564.2800723045. The cubic root of 318412 is about 68.2857067828.

The spelling of 318412 in words is "three hundred eighteen thousand, four hundred twelve".