442022212 has 24 divisors (see below), whose sum is σ = 780940160. Its totient is φ = 218907360.

The previous prime is 442022209. The next prime is 442022233. The reversal of 442022212 is 212220244.

It is a self number, because there is not a number n which added to its sum of digits gives 442022212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192133 + ... + 194419.

Almost surely, 2^442022212 is an apocalyptic number.

It is an amenable number.

442022212 is a deficient number, since it is larger than the sum of its proper divisors (338917948).

442022212 is a wasteful number, since it uses less digits than its factorization.

442022212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2731 (or 2729 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 442022212 is about 21024.3242935415. The cubic root of 442022212 is about 761.7539201217.

Adding to 442022212 its reverse (212220244), we get a palindrome (654242456).

The spelling of 442022212 in words is "four hundred forty-two million, twenty-two thousand, two hundred twelve".