2143432432 has 20 divisors (see below), whose sum is σ = 4153644616. Its totient is φ = 1071524160.

The previous prime is 2143432429. The next prime is 2143432433. The reversal of 2143432432 is 2342343412.

It is a self number, because there is not a number n which added to its sum of digits gives 2143432432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143432433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133543 + ... + 148729.

Almost surely, 2^2143432432 is an apocalyptic number.

It is an amenable number.

2143432432 is a deficient number, since it is larger than the sum of its proper divisors (2010212184).

2143432432 is a wasteful number, since it uses less digits than its factorization.

2143432432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24016 (or 24010 counting only the distinct ones).

The product of its digits is 13824, while the sum is 28.

The square root of 2143432432 is about 46297.2184045651. The cubic root of 2143432432 is about 1289.3473516920.

Adding to 2143432432 its reverse (2342343412), we get a palindrome (4485775844).

The spelling of 2143432432 in words is "two billion, one hundred forty-three million, four hundred thirty-two thousand, four hundred thirty-two".