442544700642 has 64 divisors (see below), whose sum is σ = 983641950720. Its totient is φ = 131599958400.

The previous prime is 442544700623. The next prime is 442544700649. The reversal of 442544700642 is 246007445244.

It is a junction number, because it is equal to n+sod(n) for n = 442544700594 and 442544700603.

It is not an unprimeable number, because it can be changed into a prime (442544700649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2123958 + ... + 2322990.

It is an arithmetic number, because the mean of its divisors is an integer number (15369405480).

Almost surely, 2^442544700642 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 442544700642, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (491820975360).

442544700642 is an abundant number, since it is smaller than the sum of its proper divisors (541097250078).

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

442544700642 is a wasteful number, since it uses less digits than its factorization.

442544700642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199679.

The product of its (nonzero) digits is 860160, while the sum is 42.

The spelling of 442544700642 in words is "four hundred forty-two billion, five hundred forty-four million, seven hundred thousand, six hundred forty-two".