442003330044 has 36 divisors (see below), whose sum is σ = 1118688132744. Its totient is φ = 147149572512.

The previous prime is 442003329997. The next prime is 442003330049. The reversal of 442003330044 is 440033300244.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442003330049) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7673862 + ... + 7731245.

It is an arithmetic number, because the mean of its divisors is an integer number (31074670354).

Almost surely, 2^442003330044 is an apocalyptic number.

It is an amenable number.

442003330044 is an abundant number, since it is smaller than the sum of its proper divisors (676684802700).

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

442003330044 is a wasteful number, since it uses less digits than its factorization.

442003330044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15405914 (or 15405909 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 27.

Adding to 442003330044 its reverse (440033300244), we get a palindrome (882036630288).

The spelling of 442003330044 in words is "four hundred forty-two billion, three million, three hundred thirty thousand, forty-four".