442431444330212 has 6 divisors (see below), whose sum is σ = 774255027577878. Its totient is φ = 221215722165104.

The previous prime is 442431444330191. The next prime is 442431444330217. The reversal of 442431444330212 is 212033444134244.

It can be written as a sum of positive squares in only one way, i.e., 415534607931556 + 26896836398656 = 20384666^2 + 5186216^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 442431444330212.

It is not an unprimeable number, because it can be changed into a prime (442431444330217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55303930541273 + ... + 55303930541280.

It is an arithmetic number, because the mean of its divisors is an integer number (129042504596313).

Almost surely, 2^{442431444330212} is an apocalyptic number.

It is an amenable number.

442431444330212 is a deficient number, since it is larger than the sum of its proper divisors (331823583247666).

442431444330212 is a wasteful number, since it uses less digits than its factorization.

442431444330212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110607861082557 (or 110607861082555 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 41.

Adding to 442431444330212 its reverse (212033444134244), we get a palindrome (654464888464456).

The spelling of 442431444330212 in words is "four hundred forty-two trillion, four hundred thirty-one billion, four hundred forty-four million, three hundred thirty thousand, two hundred twelve".