443144916 has 36 divisors (see below), whose sum is σ = 1186065972. Its totient is φ = 139025664.

The previous prime is 443144909. The next prime is 443144917. The reversal of 443144916 is 619441344.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 379080900 + 64064016 = 19470^2 + 8004^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (443144917) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 361435 + ... + 362658.

It is an arithmetic number, because the mean of its divisors is an integer number (32946277).

Almost surely, 2^443144916 is an apocalyptic number.

It is an amenable number.

443144916 is an abundant number, since it is smaller than the sum of its proper divisors (742921056).

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

443144916 is a wasteful number, since it uses less digits than its factorization.

443144916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724120 (or 724115 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 443144916 is about 21051.0074818285. The cubic root of 443144916 is about 762.3983078931.

The spelling of 443144916 in words is "four hundred forty-three million, one hundred forty-four thousand, nine hundred sixteen".