222842 has 8 divisors (see below), whose sum is σ = 339456. Its totient is φ = 109692.

The previous prime is 222841. The next prime is 222857. The reversal of 222842 is 248222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (222841) 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 3 ways as a sum of consecutive naturals, for example, 698 + ... + 965.

It is an arithmetic number, because the mean of its divisors is an integer number (42432).

2²²²⁸⁴² is an apocalyptic number.

222842 is a deficient number, since it is larger than the sum of its proper divisors (116614).

222842 is a wasteful number, since it uses less digits than its factorization.

222842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1732.

The product of its digits is 512, while the sum is 20.

The square root of 222842 is about 472.0614366796. The cubic root of 222842 is about 60.6269447068.

The spelling of 222842 in words is "two hundred twenty-two thousand, eight hundred forty-two".