20044442004 has 48 divisors (see below), whose sum is σ = 47624951808. Its totient is φ = 6560483328.

The previous prime is 20044442003. The next prime is 20044442021. The reversal of 20044442004 is 40024444002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20044442003) 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 15 ways as a sum of consecutive naturals, for example, 80032 + ... + 215624.

It is an arithmetic number, because the mean of its divisors is an integer number (992186496).

Almost surely, 2^20044442004 is an apocalyptic number.

It is an amenable number.

20044442004 is an abundant number, since it is smaller than the sum of its proper divisors (27580509804).

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

20044442004 is a wasteful number, since it uses less digits than its factorization.

20044442004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135824 (or 135822 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 20044442004 its reverse (40024444002), we get a palindrome (60068886006).

The spelling of 20044442004 in words is "twenty billion, forty-four million, four hundred forty-two thousand, four".