444004045 has 8 divisors (see below), whose sum is σ = 564146424. Its totient is φ = 334308864.

The previous prime is 444004039. The next prime is 444004049. The reversal of 444004045 is 540400444.

It can be written as a sum of positive squares in 4 ways, for example, as 121837444 + 322166601 = 11038^2 + 17949^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 444004045 - 2³ = 444004037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444004049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2611704 + ... + 2611873.

It is an arithmetic number, because the mean of its divisors is an integer number (70518303).

Almost surely, 2^444004045 is an apocalyptic number.

It is an amenable number.

444004045 is a deficient number, since it is larger than the sum of its proper divisors (120142379).

444004045 is a wasteful number, since it uses less digits than its factorization.

444004045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5223599.

The product of its (nonzero) digits is 5120, while the sum is 25.

The square root of 444004045 is about 21071.4034890892. The cubic root of 444004045 is about 762.8906793076.

Adding to 444004045 its reverse (540400444), we get a palindrome (984404489).

The spelling of 444004045 in words is "four hundred forty-four million, four thousand, forty-five".