228118 has 8 divisors (see below), whose sum is σ = 373320. Its totient is φ = 103680.

The previous prime is 228113. The next prime is 228127. The reversal of 228118 is 811822.

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

It is a Harshad number since it is a multiple of its sum of digits (22), and also a Moran number because the ratio is a prime number: 10369 = 228118 / (2 + 2 + 8 + 1 + 1 + 8).

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228113) 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, 5163 + ... + 5206.

It is an arithmetic number, because the mean of its divisors is an integer number (46665).

2²²⁸¹¹⁸ is an apocalyptic number.

228118 is a deficient number, since it is larger than the sum of its proper divisors (145202).

228118 is a wasteful number, since it uses less digits than its factorization.

228118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10382.

The product of its digits is 256, while the sum is 22.

The square root of 228118 is about 477.6170013724. The cubic root of 228118 is about 61.1016847413.

The spelling of 228118 in words is "two hundred twenty-eight thousand, one hundred eighteen".