228626 has 8 divisors (see below), whose sum is σ = 347520. Its totient is φ = 112788.

The previous prime is 228619. The next prime is 228637. The reversal of 228626 is 626822.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 228595 and 228604.

It is a congruent number.

It is an unprimeable number.

228626 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, 566 + ... + 881.

It is an arithmetic number, because the mean of its divisors is an integer number (43440).

2²²⁸⁶²⁶ is an apocalyptic number.

228626 is a deficient number, since it is larger than the sum of its proper divisors (118894).

228626 is a wasteful number, since it uses less digits than its factorization.

228626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1528.

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

The square root of 228626 is about 478.1485124938. The cubic root of 228626 is about 61.1470072548.

The spelling of 228626 in words is "two hundred twenty-eight thousand, six hundred twenty-six".