443661146 has 16 divisors (see below), whose sum is σ = 670236288. Its totient is φ = 220255200.

The previous prime is 443661137. The next prime is 443661161. The reversal of 443661146 is 641166344.

It is a happy number.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178166 + ... + 180638.

It is an arithmetic number, because the mean of its divisors is an integer number (41889768).

Almost surely, 2^443661146 is an apocalyptic number.

443661146 is a deficient number, since it is larger than the sum of its proper divisors (226575142).

443661146 is a wasteful number, since it uses less digits than its factorization.

443661146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3077.

The product of its digits is 41472, while the sum is 35.

The square root of 443661146 is about 21063.2653214073. The cubic root of 443661146 is about 762.6942382879.

The spelling of 443661146 in words is "four hundred forty-three million, six hundred sixty-one thousand, one hundred forty-six".