228858 has 16 divisors (see below), whose sum is σ = 523200. Its totient is φ = 65376.

The previous prime is 228853. The next prime is 228859. The reversal of 228858 is 858822.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 228858.

It is not an unprimeable number, because it can be changed into a prime (228853) by changing a digit.

228858 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 7 ways as a sum of consecutive naturals, for example, 2683 + ... + 2766.

It is an arithmetic number, because the mean of its divisors is an integer number (32700).

2²²⁸⁸⁵⁸ is an apocalyptic number.

228858 is an abundant number, since it is smaller than the sum of its proper divisors (294342).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228858 is a wasteful number, since it uses less digits than its factorization.

228858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5461.

The product of its digits is 10240, while the sum is 33.

The square root of 228858 is about 478.3910534281. The cubic root of 228858 is about 61.1676833953.

It can be divided in two parts, 2288 and 58, that added together give a triangular number (2346 = T₆₈).

The spelling of 228858 in words is "two hundred twenty-eight thousand, eight hundred fifty-eight".