2140443344 has 40 divisors (see below), whose sum is σ = 4728837960. Its totient is φ = 929783808.

The previous prime is 2140443341. The next prime is 2140443353. The reversal of 2140443344 is 4433440412.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 859662400 + 1280780944 = 29320^2 + 35788^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2140443341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 299129 + ... + 306200.

It is an arithmetic number, because the mean of its divisors is an integer number (118220949).

Almost surely, 2^2140443344 is an apocalyptic number.

It is an amenable number.

2140443344 is an abundant number, since it is smaller than the sum of its proper divisors (2588394616).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2140443344 is a wasteful number, since it uses less digits than its factorization.

2140443344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605367 (or 605361 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 29.

The square root of 2140443344 is about 46264.9256348694. The cubic root of 2140443344 is about 1288.7477269148.

Adding to 2140443344 its reverse (4433440412), we get a palindrome (6573883756).

The spelling of 2140443344 in words is "two billion, one hundred forty million, four hundred forty-three thousand, three hundred forty-four".