2129239744 has 28 divisors (see below), whose sum is σ = 4243373784. Its totient is φ = 1060043264.

The previous prime is 2129239727. The next prime is 2129239771. The reversal of 2129239744 is 4479329212.

It is a self number, because there is not a number n which added to its sum of digits gives 2129239744.

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, 56482 + ... + 86305.

Almost surely, 2^2129239744 is an apocalyptic number.

It is an amenable number.

2129239744 is a deficient number, since it is larger than the sum of its proper divisors (2114134040).

2129239744 is a wasteful number, since it uses less digits than its factorization.

2129239744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143032 (or 143022 counting only the distinct ones).

The product of its digits is 217728, while the sum is 43.

The square root of 2129239744 is about 46143.6858519126. The cubic root of 2129239744 is about 1286.4952528619.

The spelling of 2129239744 in words is "two billion, one hundred twenty-nine million, two hundred thirty-nine thousand, seven hundred forty-four".