2040443983 has 4 divisors (see below), whose sum is σ = 2042533440. Its totient is φ = 2038354528.

The previous prime is 2040443959. The next prime is 2040443987. The reversal of 2040443983 is 3893440402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2040443983 - 2²¹ = 2038346831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2040443987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1043263 + ... + 1045216.

It is an arithmetic number, because the mean of its divisors is an integer number (510633360).

Almost surely, 2^2040443983 is an apocalyptic number.

2040443983 is a deficient number, since it is larger than the sum of its proper divisors (2089457).

2040443983 is an equidigital number, since it uses as much as digits as its factorization.

2040443983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2089456.

The product of its (nonzero) digits is 82944, while the sum is 37.

The square root of 2040443983 is about 45171.2738695733. The cubic root of 2040443983 is about 1268.3571422726.

The spelling of 2040443983 in words is "two billion, forty million, four hundred forty-three thousand, nine hundred eighty-three".