442134428044 has 24 divisors (see below), whose sum is σ = 819269887968. Its totient is φ = 208057977600.

The previous prime is 442134428003. The next prime is 442134428053. The reversal of 442134428044 is 440824431244.

It is a junction number, because it is equal to n+sod(n) for n = 442134427988 and 442134428006.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4363177 + ... + 4463359.

It is an arithmetic number, because the mean of its divisors is an integer number (34136245332).

Almost surely, 2^442134428044 is an apocalyptic number.

It is an amenable number.

442134428044 is a deficient number, since it is larger than the sum of its proper divisors (377135459924).

442134428044 is a wasteful number, since it uses less digits than its factorization.

442134428044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165105 (or 165103 counting only the distinct ones).

The product of its (nonzero) digits is 393216, while the sum is 40.

Adding to 442134428044 its reverse (440824431244), we get a palindrome (882958859288).

The spelling of 442134428044 in words is "four hundred forty-two billion, one hundred thirty-four million, four hundred twenty-eight thousand, forty-four".