222264 has 80 divisors (see below), whose sum is σ = 726000. Its totient is φ = 63504.

The previous prime is 222247. The next prime is 222269. The reversal of 222264 is 462222.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is an ABA number since it can be written as A⋅B^A, here for A=3, B=42.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

Its product of digits (384) is a multiple of the sum of its prime divisors (12).

It is a nialpdrome in base 6 and base 12.

It is a zygodrome in base 6.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222269) by changing a digit.

222264 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 19 ways as a sum of consecutive naturals, for example, 31749 + ... + 31755.

It is an arithmetic number, because the mean of its divisors is an integer number (9075).

2²²²²⁶⁴ is an apocalyptic number.

222264 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (363000).

222264 is an abundant number, since it is smaller than the sum of its proper divisors (503736).

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

222264 is an equidigital number, since it uses as much as digits as its factorization.

222264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39 (or 12 counting only the distinct ones).

The product of its digits is 384, while the sum is 18.

The square root of 222264 is about 471.4488307335. The cubic root of 222264 is about 60.5744819529.

Adding to 222264 its reverse (462222), we get a palindrome (684486).

The spelling of 222264 in words is "two hundred twenty-two thousand, two hundred sixty-four".