228318 has 8 divisors (see below), whose sum is σ = 456648. Its totient is φ = 76104.

The previous prime is 228311. The next prime is 228331. The reversal of 228318 is 813822.

228318 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

228318 is an admirable number.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19021 + ... + 19032.

It is an arithmetic number, because the mean of its divisors is an integer number (57081).

2²²⁸³¹⁸ is an apocalyptic number.

228318 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

228318 is a wasteful number, since it uses less digits than its factorization.

228318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38058.

The product of its digits is 768, while the sum is 24.

The square root of 228318 is about 477.8263282826. The cubic root of 228318 is about 61.1195362734.

The spelling of 228318 in words is "two hundred twenty-eight thousand, three hundred eighteen".