444001 has 2 divisors, whose sum is σ = 444002. Its totient is φ = 444000.

The previous prime is 443999. The next prime is 444007. The reversal of 444001 is 100444.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 331776 + 112225 = 576^2 + 335^2 .

It is a cyclic number.

It is not a de Polignac number, because 444001 - 2¹ = 443999 is a prime.

Together with 443999, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (444007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222000 + 222001.

It is an arithmetic number, because the mean of its divisors is an integer number (222001).

2⁴⁴⁴⁰⁰¹ is an apocalyptic number.

It is an amenable number.

444001 is a deficient number, since it is larger than the sum of its proper divisors (1).

444001 is an equidigital number, since it uses as much as digits as its factorization.

444001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 444001 is about 666.3340003332. The cubic root of 444001 is about 76.2888935324.

Adding to 444001 its reverse (100444), we get a palindrome (544445).

The spelling of 444001 in words is "four hundred forty-four thousand, one", and thus it is an iban number.