228556 has 6 divisors (see below), whose sum is σ = 399980. Its totient is φ = 114276.

The previous prime is 228539. The next prime is 228559. The reversal of 228556 is 655822.

It is a plaindrome in base 11 and base 16.

It is not an unprimeable number, because it can be changed into a prime (228559) by changing a digit.

228556 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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, 28566 + ... + 28573.

2²²⁸⁵⁵⁶ is an apocalyptic number.

It is an amenable number.

228556 is a deficient number, since it is larger than the sum of its proper divisors (171424).

228556 is a wasteful number, since it uses less digits than its factorization.

228556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57143 (or 57141 counting only the distinct ones).

The product of its digits is 4800, while the sum is 28.

The square root of 228556 is about 478.0753078752. The cubic root of 228556 is about 61.1407660174.

It can be divided in two parts, 228 and 556, that added together give a square (784 = 28²).

The spelling of 228556 in words is "two hundred twenty-eight thousand, five hundred fifty-six".