2143443344 has 40 divisors (see below), whose sum is σ = 4748588928. Its totient is φ = 918155520.

The previous prime is 2143443329. The next prime is 2143443359. The reversal of 2143443344 is 4433443412.

It is an interprime number because it is at equal distance from previous prime (2143443329) and next prime (2143443359).

It is a self number, because there is not a number n which added to its sum of digits gives 2143443344.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 309164 + ... + 316020.

Almost surely, 2^2143443344 is an apocalyptic number.

It is an amenable number.

2143443344 is an abundant number, since it is smaller than the sum of its proper divisors (2605145584).

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

2143443344 is a wasteful number, since it uses less digits than its factorization.

2143443344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9663 (or 9657 counting only the distinct ones).

The product of its digits is 55296, while the sum is 32.

The square root of 2143443344 is about 46297.3362516679. The cubic root of 2143443344 is about 1289.3495396678.

Adding to 2143443344 its reverse (4433443412), we get a palindrome (6576886756).

The spelling of 2143443344 in words is "two billion, one hundred forty-three million, four hundred forty-three thousand, three hundred forty-four".