2201820404 has 12 divisors (see below), whose sum is σ = 4403640864. Its totient is φ = 943637304.

The previous prime is 2201820403. The next prime is 2201820407. The reversal of 2201820404 is 4040281022.

It is a happy number.

2201820404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

2201820404 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 2201820404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201820403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39318194 + ... + 39318249.

It is an arithmetic number, because the mean of its divisors is an integer number (366970072).

Almost surely, 2^2201820404 is an apocalyptic number.

It is an amenable number.

2201820404 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2201820404 is a wasteful number, since it uses less digits than its factorization.

2201820404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78636454 (or 78636452 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

The square root of 2201820404 is about 46923.5591574211. The cubic root of 2201820404 is about 1300.9500755094.

The spelling of 2201820404 in words is "two billion, two hundred one million, eight hundred twenty thousand, four hundred four".