4421432879 has 4 divisors (see below), whose sum is σ = 4681517184. Its totient is φ = 4161348576.

The previous prime is 4421432861. The next prime is 4421432891. The reversal of 4421432879 is 9782341244.

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

It is a cyclic number.

It is not a de Polignac number, because 4421432879 - 2¹² = 4421428783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4421432849) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 130042127 + ... + 130042160.

It is an arithmetic number, because the mean of its divisors is an integer number (1170379296).

Almost surely, 2^4421432879 is an apocalyptic number.

4421432879 is a deficient number, since it is larger than the sum of its proper divisors (260084305).

4421432879 is a wasteful number, since it uses less digits than its factorization.

4421432879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260084304.

The product of its digits is 387072, while the sum is 44.

The square root of 4421432879 is about 66493.8559492529. The cubic root of 4421432879 is about 1641.2989014544.

The spelling of 4421432879 in words is "four billion, four hundred twenty-one million, four hundred thirty-two thousand, eight hundred seventy-nine".