2143440322 has 8 divisors (see below), whose sum is σ = 3215421072. Its totient is φ = 1071633300.

The previous prime is 2143440287. The next prime is 2143440329. The reversal of 2143440322 is 2230443412.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2143440329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6204 + ... + 65767.

It is an arithmetic number, because the mean of its divisors is an integer number (401927634).

Almost surely, 2^2143440322 is an apocalyptic number.

2143440322 is a deficient number, since it is larger than the sum of its proper divisors (1071980750).

2143440322 is a wasteful number, since it uses less digits than its factorization.

2143440322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86864.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 2143440322 is about 46297.3036147895. The cubic root of 2143440322 is about 1289.3489337244.

Adding to 2143440322 its reverse (2230443412), we get a palindrome (4373883734).

The spelling of 2143440322 in words is "two billion, one hundred forty-three million, four hundred forty thousand, three hundred twenty-two".