2000845 has 16 divisors (see below), whose sum is σ = 2994048. Its totient is φ = 1247040.

The previous prime is 2000813. The next prime is 2000863. The reversal of 2000845 is 5480002.

It is a happy number.

It is not a de Polignac number, because 2000845 - 2⁵ = 2000813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2214 + ... + 2983.

It is an arithmetic number, because the mean of its divisors is an integer number (187128).

2^2000845 is an apocalyptic number.

It is an amenable number.

2000845 is a deficient number, since it is larger than the sum of its proper divisors (993203).

2000845 is a wasteful number, since it uses less digits than its factorization.

2000845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5220.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 2000845 is about 1414.5122834391. The cubic root of 2000845 is about 126.0098463793.

Adding to 2000845 its reverse (5480002), we get a palindrome (7480847).

It can be divided in two parts, 2000 and 845, that multiplied together give a square (1690000 = 1300²).

The spelling of 2000845 in words is "two million, eight hundred forty-five", and thus it is an aban number.