228226 has 4 divisors (see below), whose sum is σ = 342342. Its totient is φ = 114112.

The previous prime is 228223. The next prime is 228233. The reversal of 228226 is 622822.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 225625 + 2601 = 475^2 + 51^2 .

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 228197 and 228206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57055 + ... + 57058.

2²²⁸²²⁶ is an apocalyptic number.

228226 is a deficient number, since it is larger than the sum of its proper divisors (114116).

228226 is a wasteful number, since it uses less digits than its factorization.

228226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114115.

The product of its digits is 768, while the sum is 22.

The square root of 228226 is about 477.7300492956. The cubic root of 228226 is about 61.1113258640. Note that the first 3 decimals are identical.

It can be divided in two parts, 228 and 226, that added together give a palindrome (454).

The spelling of 228226 in words is "two hundred twenty-eight thousand, two hundred twenty-six".