443494728 has 96 divisors (see below), whose sum is σ = 1240107960. Its totient is φ = 143078400.

The previous prime is 443494721. The next prime is 443494739. The reversal of 443494728 is 827494344.

It can be written as a sum of positive squares in 4 ways, for example, as 432723204 + 10771524 = 20802^2 + 3282^2 .

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (443494721) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 737628 + ... + 738228.

Almost surely, 2^443494728 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 443494728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (620053980).

443494728 is an abundant number, since it is smaller than the sum of its proper divisors (796613232).

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

443494728 is a wasteful number, since it uses less digits than its factorization.

443494728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 927 (or 920 counting only the distinct ones).

The product of its digits is 774144, while the sum is 45.

The square root of 443494728 is about 21059.3145187587. The cubic root of 443494728 is about 762.5988637554.

The spelling of 443494728 in words is "four hundred forty-three million, four hundred ninety-four thousand, seven hundred twenty-eight".