2020042020 has 72 divisors (see below), whose sum is σ = 5702687424. Its totient is φ = 534259712.

The previous prime is 2020041971. The next prime is 2020042033. The reversal of 2020042020 is 202400202.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 2020041987 and 2020042005.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4498756 + ... + 4499204.

It is an arithmetic number, because the mean of its divisors is an integer number (79203992).

Almost surely, 2^2020042020 is an apocalyptic number.

2020042020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2020042020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2851343712).

2020042020 is an abundant number, since it is smaller than the sum of its proper divisors (3682645404).

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

2020042020 is a wasteful number, since it uses less digits than its factorization.

2020042020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1077 (or 626 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 12.

The square root of 2020042020 is about 44944.8775724220. The cubic root of 2020042020 is about 1264.1156301111.

Adding to 2020042020 its reverse (202400202), we get a palindrome (2222442222).

The spelling of 2020042020 in words is "two billion, twenty million, forty-two thousand, twenty".