2004120020 has 24 divisors (see below), whose sum is σ = 4809888384. Its totient is φ = 687126816.

The previous prime is 2004120017. The next prime is 2004120029. The reversal of 2004120020 is 200214002.

It is a junction number, because it is equal to n+sod(n) for n = 2004119983 and 2004120010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2004120029) 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, 7157432 + ... + 7157711.

It is an arithmetic number, because the mean of its divisors is an integer number (200412016).

Almost surely, 2^2004120020 is an apocalyptic number.

2004120020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2004120020 is an abundant number, since it is smaller than the sum of its proper divisors (2805768364).

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

2004120020 is a wasteful number, since it uses less digits than its factorization.

2004120020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14315159 (or 14315157 counting only the distinct ones).

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

The square root of 2004120020 is about 44767.3990756667. The cubic root of 2004120020 is about 1260.7856064886.

Adding to 2004120020 its reverse (200214002), we get a palindrome (2204334022).

The spelling of 2004120020 in words is "two billion, four million, one hundred twenty thousand, twenty".