444444001 has 8 divisors (see below), whose sum is σ = 460262880. Its totient is φ = 428874432.

The previous prime is 444443999. The next prime is 444444083. The reversal of 444444001 is 100444444.

It is a happy number.

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

It is not a de Polignac number, because 444444001 - 2¹ = 444443999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (444444101) by changing a digit.

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, 58696 + ... + 65833.

It is an arithmetic number, because the mean of its divisors is an integer number (57532860).

Almost surely, 2^444444001 is an apocalyptic number.

It is an amenable number.

444444001 is a deficient number, since it is larger than the sum of its proper divisors (15818879).

444444001 is a wasteful number, since it uses less digits than its factorization.

444444001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124655.

The product of its (nonzero) digits is 4096, while the sum is 25.

The square root of 444444001 is about 21081.8405505781. The cubic root of 444444001 is about 763.1425745602.

Adding to 444444001 its reverse (100444444), we get a palindrome (544888445).

The spelling of 444444001 in words is "four hundred forty-four million, four hundred forty-four thousand, one".