226628 has 12 divisors (see below), whose sum is σ = 404460. Its totient is φ = 111072.

The previous prime is 226621. The next prime is 226631. The reversal of 226628 is 826622.

226628 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 135424 + 91204 = 368^2 + 302^2 .

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 226597 and 226606.

It is not an unprimeable number, because it can be changed into a prime (226621) by changing a digit.

226628 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 323 + ... + 746.

It is an arithmetic number, because the mean of its divisors is an integer number (33705).

2²²⁶⁶²⁸ is an apocalyptic number.

It is an amenable number.

226628 is a deficient number, since it is larger than the sum of its proper divisors (177832).

226628 is a wasteful number, since it uses less digits than its factorization.

226628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126 (or 1124 counting only the distinct ones).

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

The square root of 226628 is about 476.0546187151. The cubic root of 226628 is about 60.9683612691.

The spelling of 226628 in words is "two hundred twenty-six thousand, six hundred twenty-eight".