2040020020 has 48 divisors (see below), whose sum is σ = 4388186880. Its totient is φ = 796397184.

The previous prime is 2040019999. The next prime is 2040020027. The reversal of 2040020020 is 200200402.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (10).

2040020020 is a modest number, since divided by 20020 gives 2040 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 2040019979 and 2040020006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2040020027) 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, 139077 + ... + 153043.

It is an arithmetic number, because the mean of its divisors is an integer number (91420560).

Almost surely, 2^2040020020 is an apocalyptic number.

2040020020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2040020020 is an abundant number, since it is smaller than the sum of its proper divisors (2348166860).

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

2040020020 is a wasteful number, since it uses less digits than its factorization.

2040020020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14152 (or 14150 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 10.

The square root of 2040020020 is about 45166.5807871262. The cubic root of 2040020020 is about 1268.2692898654.

Adding to 2040020020 its reverse (200200402), we get a palindrome (2240220422).

The spelling of 2040020020 in words is "two billion, forty million, twenty thousand, twenty".