2140443 has 12 divisors (see below), whose sum is σ = 3123120. Its totient is φ = 1412496.

The previous prime is 2140441. The next prime is 2140447. The reversal of 2140443 is 3440412.

It is not a de Polignac number, because 2140443 - 2¹ = 2140441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2140441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 228 + ... + 2081.

It is an arithmetic number, because the mean of its divisors is an integer number (260260).

2^2140443 is an apocalyptic number.

2140443 is a deficient number, since it is larger than the sum of its proper divisors (982677).

2140443 is a wasteful number, since it uses less digits than its factorization.

2140443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2418 (or 2415 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 2140443 is about 1463.0252902804. The cubic root of 2140443 is about 128.8747657875.

Adding to 2140443 its reverse (3440412), we get a palindrome (5580855).

The spelling of 2140443 in words is "two million, one hundred forty thousand, four hundred forty-three".