2040704243 has 4 divisors (see below), whose sum is σ = 2041286040. Its totient is φ = 2040122448.

The previous prime is 2040704207. The next prime is 2040704249. The reversal of 2040704243 is 3424070402.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2040704243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2040704249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 285605 + ... + 292662.

It is an arithmetic number, because the mean of its divisors is an integer number (510321510).

Almost surely, 2^2040704243 is an apocalyptic number.

2040704243 is a deficient number, since it is larger than the sum of its proper divisors (581797).

2040704243 is an equidigital number, since it uses as much as digits as its factorization.

2040704243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581796.

The product of its (nonzero) digits is 5376, while the sum is 26.

The square root of 2040704243 is about 45174.1545908720. The cubic root of 2040704243 is about 1268.4110665817.

Adding to 2040704243 its reverse (3424070402), we get a palindrome (5464774645).

The spelling of 2040704243 in words is "two billion, forty million, seven hundred four thousand, two hundred forty-three".