2020003020 has 144 divisors (see below), whose sum is σ = 7013959680. Its totient is φ = 460971648.

The previous prime is 2020002979. The next prime is 2020003021. The reversal of 2020003020 is 203000202.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a junction number, because it is equal to n+sod(n) for n = 2020002993 and 2020003011.

It is not an unprimeable number, because it can be changed into a prime (2020003021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1308369 + ... + 1309911.

Almost surely, 2^2020003020 is an apocalyptic number.

2020003020 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 2020003020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3506979840).

2020003020 is an abundant number, since it is smaller than the sum of its proper divisors (4993956660).

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

2020003020 is a wasteful number, since it uses less digits than its factorization.

2020003020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2604 (or 2599 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 9.

The square root of 2020003020 is about 44944.4437055349. The cubic root of 2020003020 is about 1264.1074948304.

Adding to 2020003020 its reverse (203000202), we get a palindrome (2223003222).

The spelling of 2020003020 in words is "two billion, twenty million, three thousand, twenty".