222688 has 12 divisors (see below), whose sum is σ = 438480. Its totient is φ = 111328.

The previous prime is 222679. The next prime is 222707. The reversal of 222688 is 886222.

It is a happy number.

222688 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a plaindrome in base 10.

It is a congruent number.

It is an unprimeable number.

222688 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 as a sum of consecutive naturals, namely, 3448 + ... + 3511.

It is an arithmetic number, because the mean of its divisors is an integer number (36540).

2²²²⁶⁸⁸ is an apocalyptic number.

It is an amenable number.

222688 is a deficient number, since it is larger than the sum of its proper divisors (215792).

222688 is an equidigital number, since it uses as much as digits as its factorization.

222688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6969 (or 6961 counting only the distinct ones).

The product of its digits is 3072, while the sum is 28.

The square root of 222688 is about 471.8982941270. The cubic root of 222688 is about 60.6129756150.

The spelling of 222688 in words is "two hundred twenty-two thousand, six hundred eighty-eight".