442444020122142 has 24 divisors (see below), whose sum is σ = 980922401202744. Its totient is φ = 144051541434864.

The previous prime is 442444020122129. The next prime is 442444020122171. The reversal of 442444020122142 is 241221020444244.

442444020122142 is a `hidden beast` number, since 4 + 4 + 2 + 4 + 440 + 201 + 2 + 2 + 1 + 4 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 442444020122097 and 442444020122106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 285816549693 + ... + 285816551240.

It is an arithmetic number, because the mean of its divisors is an integer number (40871766716781).

Almost surely, 2^{442444020122142} is an apocalyptic number.

442444020122142 is an abundant number, since it is smaller than the sum of its proper divisors (538478381080602).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

442444020122142 is a wasteful number, since it uses less digits than its factorization.

442444020122142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571633100984 (or 571633100981 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 36.

Adding to 442444020122142 its reverse (241221020444244), we get a palindrome (683665040566386).

The spelling of 442444020122142 in words is "four hundred forty-two trillion, four hundred forty-four billion, twenty million, one hundred twenty-two thousand, one hundred forty-two".