443420404 has 144 divisors (see below), whose sum is σ = 1029611520. Its totient is φ = 165654720.

The previous prime is 443420399. The next prime is 443420413. The reversal of 443420404 is 404024344.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2655129 + ... + 2655295.

It is an arithmetic number, because the mean of its divisors is an integer number (7150080).

Almost surely, 2^443420404 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 443420404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (514805760).

443420404 is an abundant number, since it is smaller than the sum of its proper divisors (586191116).

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

443420404 is a wasteful number, since it uses less digits than its factorization.

443420404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258 (or 249 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 25.

The square root of 443420404 is about 21057.5498099850. The cubic root of 443420404 is about 762.5562607954.

Adding to 443420404 its reverse (404024344), we get a palindrome (847444748).

The spelling of 443420404 in words is "four hundred forty-three million, four hundred twenty thousand, four hundred four".