443226816 has 140 divisors (see below), whose sum is σ = 1323651912. Its totient is φ = 146644992.

The previous prime is 443226787. The next prime is 443226887. The reversal of 443226816 is 618622344.

It is a Harshad number since it is a multiple of its sum of digits (36).

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

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, 1000291 + ... + 1000733.

Almost surely, 2^443226816 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 443226816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (661825956).

443226816 is an abundant number, since it is smaller than the sum of its proper divisors (880425096).

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

443226816 is a wasteful number, since it uses less digits than its factorization.

443226816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660 (or 641 counting only the distinct ones).

The product of its digits is 55296, while the sum is 36.

The square root of 443226816 is about 21052.9526670251. The cubic root of 443226816 is about 762.4452726465.

The spelling of 443226816 in words is "four hundred forty-three million, two hundred twenty-six thousand, eight hundred sixteen".