4338448639 has 8 divisors (see below), whose sum is σ = 4975874208. Its totient is φ = 3705434880.

The previous prime is 4338448627. The next prime is 4338448717. The reversal of 4338448639 is 9368448334.

It is a happy number.

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

It is not a de Polignac number, because 4338448639 - 2¹⁹ = 4337924351 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 (4338448339) 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 7 ways as a sum of consecutive naturals, for example, 1100842 + ... + 1104775.

It is an arithmetic number, because the mean of its divisors is an integer number (621984276).

Almost surely, 2^4338448639 is an apocalyptic number.

4338448639 is a deficient number, since it is larger than the sum of its proper divisors (637425569).

4338448639 is a wasteful number, since it uses less digits than its factorization.

4338448639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2205905.

The product of its digits is 5971968, while the sum is 52.

The square root of 4338448639 is about 65866.9009366617. The cubic root of 4338448639 is about 1630.9656715306.

The spelling of 4338448639 in words is "four billion, three hundred thirty-eight million, four hundred forty-eight thousand, six hundred thirty-nine".