444244433 has 4 divisors (see below), whose sum is σ = 448320180. Its totient is φ = 440168688.

The previous prime is 444244429. The next prime is 444244439. The reversal of 444244433 is 334442444.

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

It can be written as a sum of positive squares in 2 ways, for example, as 357512464 + 86731969 = 18908^2 + 9313^2 .

It is a cyclic number.

It is not a de Polignac number, because 444244433 - 2² = 444244429 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 444244433.

It is not an unprimeable number, because it can be changed into a prime (444244439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2037710 + ... + 2037927.

It is an arithmetic number, because the mean of its divisors is an integer number (112080045).

Almost surely, 2^444244433 is an apocalyptic number.

It is an amenable number.

444244433 is a deficient number, since it is larger than the sum of its proper divisors (4075747).

444244433 is a wasteful number, since it uses less digits than its factorization.

444244433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4075746.

The product of its digits is 73728, while the sum is 32.

The square root of 444244433 is about 21077.1068460546. The cubic root of 444244433 is about 763.0283332173.

Adding to 444244433 its reverse (334442444), we get a palindrome (778686877).

The spelling of 444244433 in words is "four hundred forty-four million, two hundred forty-four thousand, four hundred thirty-three".