222342228 has 18 divisors (see below), whose sum is σ = 562031834. Its totient is φ = 74114064.

The previous prime is 222342223. The next prime is 222342229. The reversal of 222342228 is 822243222.

It can be written as a sum of positive squares in only one way, i.e., 156050064 + 66292164 = 12492^2 + 8142^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222342223) 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 5 ways as a sum of consecutive naturals, for example, 3088051 + ... + 3088122.

Almost surely, 2^222342228 is an apocalyptic number.

It is an amenable number.

222342228 is an abundant number, since it is smaller than the sum of its proper divisors (339689606).

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

222342228 is a wasteful number, since it uses less digits than its factorization.

222342228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6176183 (or 6176178 counting only the distinct ones).

The product of its digits is 6144, while the sum is 27.

The square root of 222342228 is about 14911.1444228805. The cubic root of 222342228 is about 605.8158771415.

The spelling of 222342228 in words is "two hundred twenty-two million, three hundred forty-two thousand, two hundred twenty-eight".