222904 has 32 divisors (see below), whose sum is σ = 486000. Its totient is φ = 94720.

The previous prime is 222883. The next prime is 222913. The reversal of 222904 is 409222.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

222904 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, 1422 + ... + 1570.

2²²²⁹⁰⁴ 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 222904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243000).

222904 is an abundant number, since it is smaller than the sum of its proper divisors (263096).

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

222904 is a wasteful number, since it uses less digits than its factorization.

222904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183 (or 179 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 222904 is about 472.1271015309. The cubic root of 222904 is about 60.6325668098.

It can be divided in two parts, 22 and 2904, that added together give a triangular number (2926 = T₇₆).

The spelling of 222904 in words is "two hundred twenty-two thousand, nine hundred four".