2040343 has 4 divisors (see below), whose sum is σ = 2049120. Its totient is φ = 2031568.

The previous prime is 2040331. The next prime is 2040361. The reversal of 2040343 is 3430402.

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-2040343 is a prime.

It is a Duffinian number.

2040343 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2040443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4030 + ... + 4507.

It is an arithmetic number, because the mean of its divisors is an integer number (512280).

2^2040343 is an apocalyptic number.

2040343 is a deficient number, since it is larger than the sum of its proper divisors (8777).

2040343 is an equidigital number, since it uses as much as digits as its factorization.

2040343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8776.

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 2040343 is about 1428.4057546790. The cubic root of 2040343 is about 126.8336217967.

Adding to 2040343 its reverse (3430402), we get a palindrome (5470745).

The spelling of 2040343 in words is "two million, forty thousand, three hundred forty-three".