2144423434 has 4 divisors (see below), whose sum is σ = 3216635154. Its totient is φ = 1072211716.

The previous prime is 2144423417. The next prime is 2144423443. The reversal of 2144423434 is 4343244412.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2143967809 + 455625 = 46303^2 + 675^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 2144423396 and 2144423405.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 536105857 + ... + 536105860.

Almost surely, 2^2144423434 is an apocalyptic number.

2144423434 is a deficient number, since it is larger than the sum of its proper divisors (1072211720).

2144423434 is a wasteful number, since it uses less digits than its factorization.

2144423434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072211719.

The product of its digits is 36864, while the sum is 31.

The square root of 2144423434 is about 46307.9197762111. The cubic root of 2144423434 is about 1289.5460281881.

Adding to 2144423434 its reverse (4343244412), we get a palindrome (6487667846).

The spelling of 2144423434 in words is "two billion, one hundred forty-four million, four hundred twenty-three thousand, four hundred thirty-four".