444012013 has 2 divisors, whose sum is σ = 444012014. Its totient is φ = 444012012.

The previous prime is 444011999. The next prime is 444012017. The reversal of 444012013 is 310210444.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 377214084 + 66797929 = 19422^2 + 8173^2 .

It is a cyclic number.

It is not a de Polignac number, because 444012013 - 2⁹ = 444011501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (444012017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222006006 + 222006007.

It is an arithmetic number, because the mean of its divisors is an integer number (222006007).

Almost surely, 2^444012013 is an apocalyptic number.

It is an amenable number.

444012013 is a deficient number, since it is larger than the sum of its proper divisors (1).

444012013 is an equidigital number, since it uses as much as digits as its factorization.

444012013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 444012013 is about 21071.5925596524. The cubic root of 444012013 is about 762.8952428370.

Adding to 444012013 its reverse (310210444), we get a palindrome (754222457).

The spelling of 444012013 in words is "four hundred forty-four million, twelve thousand, thirteen".