4423138918 has 8 divisors (see below), whose sum is σ = 7237863720. Its totient is φ = 2010517680.

The previous prime is 4423138891. The next prime is 4423138939. The reversal of 4423138918 is 8198313244.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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, 100525863 + ... + 100525906.

It is an arithmetic number, because the mean of its divisors is an integer number (904732965).

Almost surely, 2^4423138918 is an apocalyptic number.

4423138918 is a deficient number, since it is larger than the sum of its proper divisors (2814724802).

4423138918 is a wasteful number, since it uses less digits than its factorization.

4423138918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201051782.

The product of its digits is 165888, while the sum is 43.

The square root of 4423138918 is about 66506.6832581508. The cubic root of 4423138918 is about 1641.5099763059.

It can be divided in two parts, 4423 and 138918, that added together give a palindrome (143341).

The spelling of 4423138918 in words is "four billion, four hundred twenty-three million, one hundred thirty-eight thousand, nine hundred eighteen".