388318 has 8 divisors (see below), whose sum is σ = 665712. Its totient is φ = 166416.

The previous prime is 388313. The next prime is 388319. The reversal of 388318 is 813883.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 388318.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13855 + ... + 13882.

It is an arithmetic number, because the mean of its divisors is an integer number (83214).

2³⁸⁸³¹⁸ is an apocalyptic number.

388318 is a deficient number, since it is larger than the sum of its proper divisors (277394).

388318 is a wasteful number, since it uses less digits than its factorization.

388318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27746.

The product of its digits is 4608, while the sum is 31.

The square root of 388318 is about 623.1516669319. The cubic root of 388318 is about 72.9562507612.

The spelling of 388318 in words is "three hundred eighty-eight thousand, three hundred eighteen".