2140442343 has 24 divisors (see below), whose sum is σ = 3333618288. Its totient is φ = 1315596672.

The previous prime is 2140442333. The next prime is 2140442363. The reversal of 2140442343 is 3432440412.

It is a happy number.

2140442343 is a `hidden beast` number, since 21 + 404 + 4 + 234 + 3 = 666.

It is not a de Polignac number, because 2140442343 - 2¹² = 2140438247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2140442333) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 89596 + ... + 110942.

It is an arithmetic number, because the mean of its divisors is an integer number (138900762).

Almost surely, 2^2140442343 is an apocalyptic number.

2140442343 is a deficient number, since it is larger than the sum of its proper divisors (1193175945).

2140442343 is a wasteful number, since it uses less digits than its factorization.

2140442343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22223 (or 22220 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

The square root of 2140442343 is about 46264.9148167377. The cubic root of 2140442343 is about 1288.7475260161.

Adding to 2140442343 its reverse (3432440412), we get a palindrome (5572882755).

The spelling of 2140442343 in words is "two billion, one hundred forty million, four hundred forty-two thousand, three hundred forty-three".