20020044020 has 24 divisors (see below), whose sum is σ = 42754672800. Its totient is φ = 7872288032.

The previous prime is 20020043993. The next prime is 20020044029. The reversal of 20020044020 is 2044002002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20020043986 and 20020044004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020044029) 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, 8481890 + ... + 8484249.

It is an arithmetic number, because the mean of its divisors is an integer number (1781444700).

Almost surely, 2^20020044020 is an apocalyptic number.

20020044020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20020044020 is an abundant number, since it is smaller than the sum of its proper divisors (22734628780).

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

20020044020 is a wasteful number, since it uses less digits than its factorization.

20020044020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16966207 (or 16966205 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

Adding to 20020044020 its reverse (2044002002), we get a palindrome (22064046022).

The spelling of 20020044020 in words is "twenty billion, twenty million, forty-four thousand, twenty".