222323142 has 32 divisors (see below), whose sum is σ = 468748800. Its totient is φ = 70102368.

The previous prime is 222323141. The next prime is 222323149. The reversal of 222323142 is 241323222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222323141) 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 15 ways as a sum of consecutive naturals, for example, 117508 + ... + 119384.

It is an arithmetic number, because the mean of its divisors is an integer number (14648400).

Almost surely, 2^222323142 is an apocalyptic number.

222323142 is an abundant number, since it is smaller than the sum of its proper divisors (246425658).

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

222323142 is a wasteful number, since it uses less digits than its factorization.

222323142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2940.

The product of its digits is 1152, while the sum is 21.

The square root of 222323142 is about 14910.5044180269. The cubic root of 222323142 is about 605.7985421038.

Adding to 222323142 its reverse (241323222), we get a palindrome (463646364).

The spelling of 222323142 in words is "two hundred twenty-two million, three hundred twenty-three thousand, one hundred forty-two".