222042432 has 56 divisors (see below), whose sum is σ = 589641696. Its totient is φ = 73742848.

The previous prime is 222042427. The next prime is 222042433. The reversal of 222042432 is 234240222.

It is a junction number, because it is equal to n+sod(n) for n = 222042399 and 222042408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222042433) 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 7 ways as a sum of consecutive naturals, for example, 54283 + ... + 58229.

It is an arithmetic number, because the mean of its divisors is an integer number (10529316).

Almost surely, 2^222042432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222042432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (294820848).

222042432 is an abundant number, since it is smaller than the sum of its proper divisors (367599264).

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

222042432 is a wasteful number, since it uses less digits than its factorization.

222042432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4255 (or 4245 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 222042432 is about 14901.0882824041. The cubic root of 222042432 is about 605.5434699468.

Adding to 222042432 its reverse (234240222), we get a palindrome (456282654).

The spelling of 222042432 in words is "two hundred twenty-two million, forty-two thousand, four hundred thirty-two".