2000844 has 18 divisors (see below), whose sum is σ = 5057780. Its totient is φ = 666936.

The previous prime is 2000813. The next prime is 2000863. The reversal of 2000844 is 4480002.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27754 + ... + 27825.

2^2000844 is an apocalyptic number.

It is an amenable number.

2000844 is an abundant number, since it is smaller than the sum of its proper divisors (3056936).

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

2000844 is a wasteful number, since it uses less digits than its factorization.

2000844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55589 (or 55584 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 2000844 is about 1414.5119299603. The cubic root of 2000844 is about 126.0098253865.

Adding to 2000844 its reverse (4480002), we get a palindrome (6480846).

The spelling of 2000844 in words is "two million, eight hundred forty-four", and thus it is an aban number.