2143446688 has 24 divisors (see below), whose sum is σ = 4221933408. Its totient is φ = 1071209664.

The previous prime is 2143446653. The next prime is 2143446737. The reversal of 2143446688 is 8866443412.

It is a happy number.

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, 56845 + ... + 86707.

It is an arithmetic number, because the mean of its divisors is an integer number (175913892).

Almost surely, 2^2143446688 is an apocalyptic number.

It is an amenable number.

2143446688 is a deficient number, since it is larger than the sum of its proper divisors (2078486720).

2143446688 is a wasteful number, since it uses less digits than its factorization.

2143446688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32116 (or 32108 counting only the distinct ones).

The product of its digits is 884736, while the sum is 46.

The square root of 2143446688 is about 46297.3723660425. The cubic root of 2143446688 is about 1289.3502101750.

The spelling of 2143446688 in words is "two billion, one hundred forty-three million, four hundred forty-six thousand, six hundred eighty-eight".