222442224 has 80 divisors (see below), whose sum is σ = 593712000. Its totient is φ = 71712000.

The previous prime is 222442217. The next prime is 222442237. The reversal of 222442224 is 422244222.

It is a Harshad number since it is a multiple of its sum of digits (24).

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 = 222442194 and 222442203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 445527 + ... + 446025.

It is an arithmetic number, because the mean of its divisors is an integer number (7421400).

Almost surely, 2^222442224 is an apocalyptic number.

222442224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222442224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (296856000).

222442224 is an abundant number, since it is smaller than the sum of its proper divisors (371269776).

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

222442224 is a wasteful number, since it uses less digits than its factorization.

222442224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798 (or 792 counting only the distinct ones).

The product of its digits is 4096, while the sum is 24.

The square root of 222442224 is about 14914.4971085183. The cubic root of 222442224 is about 605.9066832315.

Adding to 222442224 its reverse (422244222), we get a palindrome (644686446).

The spelling of 222442224 in words is "two hundred twenty-two million, four hundred forty-two thousand, two hundred twenty-four".