42404442044 has 36 divisors (see below), whose sum is σ = 76396786200. Its totient is φ = 20594017920.

The previous prime is 42404442019. The next prime is 42404442049. The reversal of 42404442044 is 44024440424.

It is a self number, because there is not a number n which added to its sum of digits gives 42404442044.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42404442049) 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, 1526027 + ... + 1553565.

It is an arithmetic number, because the mean of its divisors is an integer number (2122132950).

Almost surely, 2^42404442044 is an apocalyptic number.

It is an amenable number.

42404442044 is a deficient number, since it is larger than the sum of its proper divisors (33992344156).

42404442044 is a wasteful number, since it uses less digits than its factorization.

42404442044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27854 (or 27811 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 32.

Adding to 42404442044 its reverse (44024440424), we get a palindrome (86428882468).

The spelling of 42404442044 in words is "forty-two billion, four hundred four million, four hundred forty-two thousand, forty-four".