443440136 has 16 divisors (see below), whose sum is σ = 834689340. Its totient is φ = 220856320.

The previous prime is 443440117. The next prime is 443440139. The reversal of 443440136 is 631044344.

It can be written as a sum of positive squares in 2 ways, for example, as 420496036 + 22944100 = 20506^2 + 4790^2 .

It is a junction number, because it is equal to n+sod(n) for n = 443440099 and 443440108.

It is not an unprimeable number, because it can be changed into a prime (443440139) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 105785 + ... + 109896.

Almost surely, 2^443440136 is an apocalyptic number.

It is an amenable number.

443440136 is a deficient number, since it is larger than the sum of its proper divisors (391249204).

443440136 is a wasteful number, since it uses less digits than its factorization.

443440136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215944 (or 215940 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 29.

The square root of 443440136 is about 21058.0183303178. The cubic root of 443440136 is about 762.5675717596.

The spelling of 443440136 in words is "four hundred forty-three million, four hundred forty thousand, one hundred thirty-six".