442144222 has 24 divisors (see below), whose sum is σ = 719607240. Its totient is φ = 203654880.

The previous prime is 442144217. The next prime is 442144229. The reversal of 442144222 is 222441244.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442144229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 222429 + ... + 224407.

It is an arithmetic number, because the mean of its divisors is an integer number (29983635).

Almost surely, 2^442144222 is an apocalyptic number.

442144222 is a deficient number, since it is larger than the sum of its proper divisors (277463018).

442144222 is a wasteful number, since it uses less digits than its factorization.

442144222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2668 (or 2655 counting only the distinct ones).

The product of its digits is 4096, while the sum is 25.

The square root of 442144222 is about 21027.2257323690. The cubic root of 442144222 is about 761.8240018530.

Adding to 442144222 its reverse (222441244), we get a palindrome (664585466).

The spelling of 442144222 in words is "four hundred forty-two million, one hundred forty-four thousand, two hundred twenty-two".