4399266816 has 220 divisors, whose sum is σ = 15015776688. Its totient is φ = 1256767488.

The previous prime is 4399266803. The next prime is 4399266827. The reversal of 4399266816 is 6186629934.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 576820 + ... + 584396.

Almost surely, 2^4399266816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4399266816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7507888344).

4399266816 is an abundant number, since it is smaller than the sum of its proper divisors (10616509872).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4399266816 is an equidigital number, since it uses as much as digits as its factorization.

4399266816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7616 (or 7589 counting only the distinct ones).

The product of its digits is 3359232, while the sum is 54.

The square root of 4399266816 is about 66326.9689945199. The cubic root of 4399266816 is about 1638.5515189868.

The spelling of 4399266816 in words is "four billion, three hundred ninety-nine million, two hundred sixty-six thousand, eight hundred sixteen".