442004044043 has 4 divisors (see below), whose sum is σ = 442011129720. Its totient is φ = 441996958368.

The previous prime is 442004044019. The next prime is 442004044073. The reversal of 442004044043 is 340440400244.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-442004044043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 442004043997 and 442004044015.

It is not an unprimeable number, because it can be changed into a prime (442004044073) 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 in 3 ways as a sum of consecutive naturals, for example, 3448430 + ... + 3574307.

It is an arithmetic number, because the mean of its divisors is an integer number (110502782430).

Almost surely, 2^442004044043 is an apocalyptic number.

442004044043 is a deficient number, since it is larger than the sum of its proper divisors (7085677).

442004044043 is an equidigital number, since it uses as much as digits as its factorization.

442004044043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7085676.

The product of its (nonzero) digits is 24576, while the sum is 29.

Adding to 442004044043 its reverse (340440400244), we get a palindrome (782444444287).

The spelling of 442004044043 in words is "four hundred forty-two billion, four million, forty-four thousand, forty-three".