228582 has 40 divisors (see below), whose sum is σ = 548856. Its totient is φ = 70848.

The previous prime is 228581. The next prime is 228587. The reversal of 228582 is 285822.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228581) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2713 + ... + 2795.

2²²⁸⁵⁸² is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228582, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (274428).

228582 is an abundant number, since it is smaller than the sum of its proper divisors (320274).

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

228582 is a wasteful number, since it uses less digits than its factorization.

228582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114 (or 105 counting only the distinct ones).

The product of its digits is 2560, while the sum is 27.

The square root of 228582 is about 478.1024994706. The cubic root of 228582 is about 61.1430843401.

The spelling of 228582 in words is "two hundred twenty-eight thousand, five hundred eighty-two".