4318221856 has 48 divisors (see below), whose sum is σ = 9195643800. Its totient is φ = 1984278528.

The previous prime is 4318221841. The next prime is 4318221877. The reversal of 4318221856 is 6581228134.

It can be written as a sum of positive squares in 4 ways, for example, as 3976563600 + 341658256 = 63060^2 + 18484^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72600 + ... + 117928.

Almost surely, 2^4318221856 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 4318221856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4597821900).

4318221856 is an abundant number, since it is smaller than the sum of its proper divisors (4877421944).

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

4318221856 is a wasteful number, since it uses less digits than its factorization.

4318221856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45581 (or 45573 counting only the distinct ones).

The product of its digits is 92160, while the sum is 40.

The square root of 4318221856 is about 65713.1787086883. The cubic root of 4318221856 is about 1628.4270844118.

The spelling of 4318221856 in words is "four billion, three hundred eighteen million, two hundred twenty-one thousand, eight hundred fifty-six".