42224222 has 16 divisors (see below), whose sum is σ = 64703232. Its totient is φ = 20661120.

The previous prime is 42224207. The next prime is 42224227. The reversal of 42224222 is 22242224.

It is a junction number, because it is equal to n+sod(n) for n = 42224194 and 42224203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42224227) 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, 18947 + ... + 21057.

It is an arithmetic number, because the mean of its divisors is an integer number (4043952).

Almost surely, 2^42224222 is an apocalyptic number.

42224222 is a deficient number, since it is larger than the sum of its proper divisors (22479010).

42224222 is a wasteful number, since it uses less digits than its factorization.

42224222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2323.

The product of its digits is 1024, while the sum is 20.

The square root of 42224222 is about 6498.0167743705. The cubic root of 42224222 is about 348.2201397023.

Adding to 42224222 its reverse (22242224), we get a palindrome (64466446).

The spelling of 42224222 in words is "forty-two million, two hundred twenty-four thousand, two hundred twenty-two".