4438666243 has 8 divisors (see below), whose sum is σ = 4844689200. Its totient is φ = 4033061280.

The previous prime is 4438666189. The next prime is 4438666249. The reversal of 4438666243 is 3426668344.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4438666243 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4438666193 and 4438666202.

It is not an unprimeable number, because it can be changed into a prime (4438666249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82080 + ... + 124957.

It is an arithmetic number, because the mean of its divisors is an integer number (605586150).

Almost surely, 2^4438666243 is an apocalyptic number.

4438666243 is a deficient number, since it is larger than the sum of its proper divisors (406022957).

4438666243 is a wasteful number, since it uses less digits than its factorization.

4438666243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208997.

The product of its digits is 1990656, while the sum is 46.

The square root of 4438666243 is about 66623.3160612709. The cubic root of 4438666243 is about 1643.4285603768.

The spelling of 4438666243 in words is "four billion, four hundred thirty-eight million, six hundred sixty-six thousand, two hundred forty-three".