222588 has 36 divisors (see below), whose sum is σ = 586040. Its totient is φ = 73872.

The previous prime is 222587. The next prime is 222601. The reversal of 222588 is 885222.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a plaindrome in base 10.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 222588.

It is not an unprimeable number, because it can be changed into a prime (222587) by changing a digit.

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 in 11 ways as a sum of consecutive naturals, for example, 858 + ... + 1086.

2²²²⁵⁸⁸ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222588, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (293020).

222588 is an abundant number, since it is smaller than the sum of its proper divisors (363452).

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

222588 is a wasteful number, since it uses less digits than its factorization.

222588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248 (or 234 counting only the distinct ones).

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

The square root of 222588 is about 471.7923271949. The cubic root of 222588 is about 60.6039013271.

The spelling of 222588 in words is "two hundred twenty-two thousand, five hundred eighty-eight".