2040843 has 16 divisors (see below), whose sum is σ = 3134720. Its totient is φ = 1156896.

The previous prime is 2040827. The next prime is 2040851. The reversal of 2040843 is 3480402.

It is a happy number.

It is not a de Polignac number, because 2040843 - 2⁴ = 2040827 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2040803) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2988 + ... + 3606.

It is an arithmetic number, because the mean of its divisors is an integer number (195920).

2^2040843 is an apocalyptic number.

2040843 is a deficient number, since it is larger than the sum of its proper divisors (1093877).

2040843 is a wasteful number, since it uses less digits than its factorization.

2040843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 2040843 is about 1428.5807642552. The cubic root of 2040843 is about 126.8439814325.

The spelling of 2040843 in words is "two million, forty thousand, eight hundred forty-three".