2020199820 has 24 divisors (see below), whose sum is σ = 5656559664. Its totient is φ = 538719936.

The previous prime is 2020199809. The next prime is 2020199821. The reversal of 2020199820 is 289910202.

It is a happy number.

2020199820 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2020199821) 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, 16834939 + ... + 16835058.

It is an arithmetic number, because the mean of its divisors is an integer number (235689986).

Almost surely, 2^2020199820 is an apocalyptic number.

2020199820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2020199820 is an abundant number, since it is smaller than the sum of its proper divisors (3636359844).

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

2020199820 is a wasteful number, since it uses less digits than its factorization.

2020199820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33670009 (or 33670007 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 2020199820 is about 44946.6330218405. The cubic root of 2020199820 is about 1264.1485456397.

It can be divided in two parts, 20201 and 99820, that added together give a palindrome (120021).

The spelling of 2020199820 in words is "two billion, twenty million, one hundred ninety-nine thousand, eight hundred twenty".