444904013 has 2 divisors, whose sum is σ = 444904014. Its totient is φ = 444904012.

The previous prime is 444904001. The next prime is 444904027. The reversal of 444904013 is 310409444.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 440916004 + 3988009 = 20998^2 + 1997^2 .

It is a cyclic number.

It is not a de Polignac number, because 444904013 - 2¹⁴ = 444887629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (444904043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222452006 + 222452007.

It is an arithmetic number, because the mean of its divisors is an integer number (222452007).

Almost surely, 2^444904013 is an apocalyptic number.

It is an amenable number.

444904013 is a deficient number, since it is larger than the sum of its proper divisors (1).

444904013 is an equidigital number, since it uses as much as digits as its factorization.

444904013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 444904013 is about 21092.7478769363. The cubic root of 444904013 is about 763.4057750937.

The spelling of 444904013 in words is "four hundred forty-four million, nine hundred four thousand, thirteen".