442222124 has 12 divisors (see below), whose sum is σ = 774530064. Its totient is φ = 220927824.

The previous prime is 442222063. The next prime is 442222133. The reversal of 442222124 is 421222244.

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

It is a self number, because there is not a number n which added to its sum of digits gives 442222124.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40307 + ... + 50090.

It is an arithmetic number, because the mean of its divisors is an integer number (64544172).

Almost surely, 2^442222124 is an apocalyptic number.

It is an amenable number.

442222124 is a deficient number, since it is larger than the sum of its proper divisors (332307940).

442222124 is a wasteful number, since it uses less digits than its factorization.

442222124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91624 (or 91622 counting only the distinct ones).

The product of its digits is 2048, while the sum is 23.

The square root of 442222124 is about 21029.0780587262. The cubic root of 442222124 is about 761.8687414992.

Adding to 442222124 its reverse (421222244), we get a palindrome (863444368).

The spelling of 442222124 in words is "four hundred forty-two million, two hundred twenty-two thousand, one hundred twenty-four".