20002020028 has 12 divisors (see below), whose sum is σ = 35127224440. Its totient is φ = 9965670192.

The previous prime is 20002020013. The next prime is 20002020029. The reversal of 20002020028 is 82002020002.

It is a junction number, because it is equal to n+sod(n) for n = 20002019993 and 20002020020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20002020029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8833683 + ... + 8835946.

Almost surely, 2^20002020028 is an apocalyptic number.

It is an amenable number.

20002020028 is a deficient number, since it is larger than the sum of its proper divisors (15125204412).

20002020028 is a wasteful number, since it uses less digits than its factorization.

20002020028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17669916 (or 17669914 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The spelling of 20002020028 in words is "twenty billion, two million, twenty thousand, twenty-eight".