222423132 has 24 divisors (see below), whose sum is σ = 533015056. Its totient is φ = 72137088.

The previous prime is 222423107. The next prime is 222423137. The reversal of 222423132 is 231324222.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 222423099 and 222423108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222423137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250033 + ... + 250920.

Almost surely, 2^222423132 is an apocalyptic number.

It is an amenable number.

222423132 is an abundant number, since it is smaller than the sum of its proper divisors (310591924).

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

222423132 is a wasteful number, since it uses less digits than its factorization.

222423132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500997 (or 500995 counting only the distinct ones).

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

The square root of 222423132 is about 14913.8570463847. The cubic root of 222423132 is about 605.8893479415.

Adding to 222423132 its reverse (231324222), we get a palindrome (453747354).

The spelling of 222423132 in words is "two hundred twenty-two million, four hundred twenty-three thousand, one hundred thirty-two".