2140442344 has 16 divisors (see below), whose sum is σ = 4068307620. Its totient is φ = 1055560320.

The previous prime is 2140442333. The next prime is 2140442363. The reversal of 2140442344 is 4432440412.

It can be written as a sum of positive squares in 2 ways, for example, as 2131668900 + 8773444 = 46170^2 + 2962^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1831987 + ... + 1833154.

Almost surely, 2^2140442344 is an apocalyptic number.

It is an amenable number.

2140442344 is a deficient number, since it is larger than the sum of its proper divisors (1927865276).

2140442344 is a wasteful number, since it uses less digits than its factorization.

2140442344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3665220 (or 3665216 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

The square root of 2140442344 is about 46264.9148275451. The cubic root of 2140442344 is about 1288.7475262168.

Adding to 2140442344 its reverse (4432440412), we get a palindrome (6572882756).

The spelling of 2140442344 in words is "two billion, one hundred forty million, four hundred forty-two thousand, three hundred forty-four".