228236 has 6 divisors (see below), whose sum is σ = 399420. Its totient is φ = 114116.

The previous prime is 228233. The next prime is 228251. The reversal of 228236 is 632822.

228236 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (228233) 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 as a sum of consecutive naturals, namely, 28526 + ... + 28533.

It is an arithmetic number, because the mean of its divisors is an integer number (66570).

2²²⁸²³⁶ is an apocalyptic number.

It is an amenable number.

228236 is a deficient number, since it is larger than the sum of its proper divisors (171184).

228236 is a wasteful number, since it uses less digits than its factorization.

228236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57063 (or 57061 counting only the distinct ones).

The product of its digits is 1152, while the sum is 23.

The square root of 228236 is about 477.7405153428. The cubic root of 228236 is about 61.1122184066.

It can be divided in two parts, 228 and 236, that added together give a palindrome (464).

The spelling of 228236 in words is "two hundred twenty-eight thousand, two hundred thirty-six".