228338 has 16 divisors (see below), whose sum is σ = 381024. Its totient is φ = 101760.

The previous prime is 228337. The next prime is 228341. The reversal of 228338 is 833822.

It is not an unprimeable number, because it can be changed into a prime (228331) 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 7 ways as a sum of consecutive naturals, for example, 2081 + ... + 2187.

It is an arithmetic number, because the mean of its divisors is an integer number (23814).

2²²⁸³³⁸ is an apocalyptic number.

228338 is a deficient number, since it is larger than the sum of its proper divisors (152686).

228338 is a wasteful number, since it uses less digits than its factorization.

228338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217.

The product of its digits is 2304, while the sum is 26.

The square root of 228338 is about 477.8472559302. The cubic root of 228338 is about 61.1213208531.

The spelling of 228338 in words is "two hundred twenty-eight thousand, three hundred thirty-eight".