2201844 has 12 divisors (see below), whose sum is σ = 5137664. Its totient is φ = 733944.

The previous prime is 2201839. The next prime is 2201897. The reversal of 2201844 is 4481022.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 2201844.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91732 + ... + 91755.

2^2201844 is an apocalyptic number.

It is an amenable number.

2201844 is an abundant number, since it is smaller than the sum of its proper divisors (2935820).

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

2201844 is a wasteful number, since it uses less digits than its factorization.

2201844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183494 (or 183492 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 2201844 is about 1483.8611794909. The cubic root of 2201844 is about 130.0954722741.

Adding to 2201844 its reverse (4481022), we get a palindrome (6682866).

The spelling of 2201844 in words is "two million, two hundred one thousand, eight hundred forty-four".