2143432434 has 32 divisors (see below), whose sum is σ = 5036318784. Its totient is φ = 599561280.

The previous prime is 2143432433. The next prime is 2143432439. The reversal of 2143432434 is 4342343412.

It is a happy number.

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

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1248229 + ... + 1249944.

It is an arithmetic number, because the mean of its divisors is an integer number (157384962).

Almost surely, 2^2143432434 is an apocalyptic number.

2143432434 is an abundant number, since it is smaller than the sum of its proper divisors (2892886350).

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

2143432434 is a wasteful number, since it uses less digits than its factorization.

2143432434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2498202.

The product of its digits is 27648, while the sum is 30.

The square root of 2143432434 is about 46297.2184261647. The cubic root of 2143432434 is about 1289.3473520931.

Adding to 2143432434 its reverse (4342343412), we get a palindrome (6485775846).

The spelling of 2143432434 in words is "two billion, one hundred forty-three million, four hundred thirty-two thousand, four hundred thirty-four".