2203820020 has 12 divisors (see below), whose sum is σ = 4628022084. Its totient is φ = 881528000.

The previous prime is 2203819963. The next prime is 2203820071. The reversal of 2203820020 is 200283022.

It can be written as a sum of positive squares in 2 ways, for example, as 1381162896 + 822657124 = 37164^2 + 28682^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2203820020.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55095481 + ... + 55095520.

It is an arithmetic number, because the mean of its divisors is an integer number (385668507).

Almost surely, 2^2203820020 is an apocalyptic number.

2203820020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2203820020 is an abundant number, since it is smaller than the sum of its proper divisors (2424202064).

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

2203820020 is a wasteful number, since it uses less digits than its factorization.

2203820020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110191010 (or 110191008 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 2203820020 is about 46944.8614866420. The cubic root of 2203820020 is about 1301.3437820804.

The spelling of 2203820020 in words is "two billion, two hundred three million, eight hundred twenty thousand, twenty".