2104020020 has 48 divisors (see below), whose sum is σ = 4457980800. Its totient is φ = 834111360.

The previous prime is 2104020019. The next prime is 2104020029. The reversal of 2104020020 is 200204012.

It is a junction number, because it is equal to n+sod(n) for n = 2104019983 and 2104020010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2104020029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1298771 + ... + 1300389.

It is an arithmetic number, because the mean of its divisors is an integer number (92874600).

Almost surely, 2^2104020020 is an apocalyptic number.

2104020020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2104020020 is an abundant number, since it is smaller than the sum of its proper divisors (2353960780).

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

2104020020 is a wasteful number, since it uses less digits than its factorization.

2104020020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2168 (or 2166 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 2104020020 is about 45869.5979925702. The cubic root of 2104020020 is about 1281.3957796609.

Adding to 2104020020 its reverse (200204012), we get a palindrome (2304224032).

The spelling of 2104020020 in words is "two billion, one hundred four million, twenty thousand, twenty".