442344500330642 has 48 divisors (see below), whose sum is σ = 833447255827032. Its totient is φ = 174524277231360.

The previous prime is 442344500330587. The next prime is 442344500330669. The reversal of 442344500330642 is 246033005443244.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 354947823123481 + 87396677207161 = 18840059^2 + 9348619^2 .

It is a junction number, because it is equal to n+sod(n) for n = 442344500330593 and 442344500330602.

It is an unprimeable number.

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 in 23 ways as a sum of consecutive naturals, for example, 464952659 + ... + 465903062.

Almost surely, 2^{442344500330642} is an apocalyptic number.

442344500330642 is a deficient number, since it is larger than the sum of its proper divisors (391102755496390).

442344500330642 is a wasteful number, since it uses less digits than its factorization.

442344500330642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 930856123 (or 930856116 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 44.

Adding to 442344500330642 its reverse (246033005443244), we get a palindrome (688377505773886).

The spelling of 442344500330642 in words is "four hundred forty-two trillion, three hundred forty-four billion, five hundred million, three hundred thirty thousand, six hundred forty-two".