443942966 has 4 divisors (see below), whose sum is σ = 665914452. Its totient is φ = 221971482.

The previous prime is 443942959. The next prime is 443942969. The reversal of 443942966 is 669249344.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 443942966.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (443942969) 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 as a sum of consecutive naturals, namely, 110985740 + ... + 110985743.

It is an arithmetic number, because the mean of its divisors is an integer number (166478613).

Almost surely, 2^443942966 is an apocalyptic number.

443942966 is a deficient number, since it is larger than the sum of its proper divisors (221971486).

443942966 is a wasteful number, since it uses less digits than its factorization.

443942966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221971485.

The product of its digits is 1119744, while the sum is 47.

The square root of 443942966 is about 21069.9541053131. The cubic root of 443942966 is about 762.8556955898.

The spelling of 443942966 in words is "four hundred forty-three million, nine hundred forty-two thousand, nine hundred sixty-six".