20020444042000 has 40 divisors (see below), whose sum is σ = 48409433698392. Its totient is φ = 8008177616000.

The previous prime is 20020444041989. The next prime is 20020444042003. The reversal of 20020444042000 is 24044402002.

It can be written as a sum of positive squares in 4 ways, for example, as 82004340496 + 19938439701504 = 286364^2 + 4465248^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (20020444042003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5005109011 + ... + 5005113010.

Almost surely, 2^{20020444042000} is an apocalyptic number.

20020444042000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20020444042000 is an abundant number, since it is smaller than the sum of its proper divisors (28388989656392).

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

20020444042000 is a wasteful number, since it uses less digits than its factorization.

20020444042000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10010222044 (or 10010222028 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 20020444042000 its reverse (24044402002), we get a palindrome (20044488444002).

The spelling of 20020444042000 in words is "twenty trillion, twenty billion, four hundred forty-four million, forty-two thousand".