222404 has 36 divisors (see below), whose sum is σ = 491904. Its totient is φ = 86112.

The previous prime is 222403. The next prime is 222419. The reversal of 222404 is 404222.

It is a happy number.

It is a super-5 number, since 5×222404⁵ (a number of 28 digits) contains 55555 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (222403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4709 + ... + 4755.

It is an arithmetic number, because the mean of its divisors is an integer number (13664).

2²²²⁴⁰⁴ 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 222404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (245952).

222404 is an abundant number, since it is smaller than the sum of its proper divisors (269500).

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

222404 is a wasteful number, since it uses less digits than its factorization.

222404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84 (or 69 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 222404 is about 471.5972858276. The cubic root of 222404 is about 60.5871975337.

Adding to 222404 its reverse (404222), we get a palindrome (626626).

It can be divided in two parts, 222 and 404, that added together give a palindrome (626).

The spelling of 222404 in words is "two hundred twenty-two thousand, four hundred four", and thus it is an iban number.