444449306 has 12 divisors (see below), whose sum is σ = 775518858. Its totient is φ = 190478232.

The previous prime is 444449297. The next prime is 444449321. The reversal of 444449306 is 603944444.

It can be written as a sum of positive squares in only one way, i.e., 437186281 + 7263025 = 20909^2 + 2695^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 444449306.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2267501 + ... + 2267696.

Almost surely, 2^444449306 is an apocalyptic number.

444449306 is a deficient number, since it is larger than the sum of its proper divisors (331069552).

444449306 is a wasteful number, since it uses less digits than its factorization.

444449306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4535213 (or 4535206 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 38.

The square root of 444449306 is about 21081.9663693878. The cubic root of 444449306 is about 763.1456109047.

The spelling of 444449306 in words is "four hundred forty-four million, four hundred forty-nine thousand, three hundred six".