2140323443 has 16 divisors (see below), whose sum is σ = 2376055296. Its totient is φ = 1917632640.

The previous prime is 2140323391. The next prime is 2140323467. The reversal of 2140323443 is 3443230412.

It is not a de Polignac number, because 2140323443 - 2¹⁰ = 2140322419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2140323473) 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, 69530 + ... + 95472.

It is an arithmetic number, because the mean of its divisors is an integer number (148503456).

Almost surely, 2^2140323443 is an apocalyptic number.

2140323443 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2140323443 is a deficient number, since it is larger than the sum of its proper divisors (235731853).

2140323443 is a wasteful number, since it uses less digits than its factorization.

2140323443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26194.

The product of its (nonzero) digits is 6912, while the sum is 26.

The square root of 2140323443 is about 46263.6298078739. The cubic root of 2140323443 is about 1288.7236625814.

Adding to 2140323443 its reverse (3443230412), we get a palindrome (5583553855).

The spelling of 2140323443 in words is "two billion, one hundred forty million, three hundred twenty-three thousand, four hundred forty-three".