443990016 has 90 divisors (see below), whose sum is σ = 1283024652. Its totient is φ = 147947520.

The previous prime is 443989993. The next prime is 443990021. The reversal of 443990016 is 610099344.

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

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 145951 + ... + 148961.

Almost surely, 2^443990016 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 443990016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (641512326).

443990016 is an abundant number, since it is smaller than the sum of its proper divisors (839034636).

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

443990016 is an equidigital number, since it uses as much as digits as its factorization.

443990016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3045 (or 3016 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 443990016 is about 21071.0705945379. The cubic root of 443990016 is about 762.8826443162.

The spelling of 443990016 in words is "four hundred forty-three million, nine hundred ninety thousand, sixteen".