2020020 has 48 divisors (see below), whose sum is σ = 5721408. Its totient is φ = 532480.

The previous prime is 2020019. The next prime is 2020027. The reversal of 2020020 is 200202.

It is a Harshad number since it is a multiple of its sum of digits (6).

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 = 2019990 and 2020008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020027) 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, 7732 + ... + 7988.

It is an arithmetic number, because the mean of its divisors is an integer number (119196).

2^2020020 is an apocalyptic number.

2020020 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 2020020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2860704).

2020020 is an abundant number, since it is smaller than the sum of its proper divisors (3701388).

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

2020020 is a wasteful number, since it uses less digits than its factorization.

2020020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400 (or 398 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 6.

The square root of 2020020 is about 1421.2740763132. The cubic root of 2020020 is about 126.4111036819.

Adding to 2020020 its reverse (200202), we get a palindrome (2220222).

The spelling of 2020020 in words is "two million, twenty thousand, twenty".