444000013 has 4 divisors (see below), whose sum is σ = 446480640. Its totient is φ = 441519388.

The previous prime is 443999993. The next prime is 444000041. The reversal of 444000013 is 310000444.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 444000013 - 2¹⁷ = 443868941 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 (444000313) 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 3 ways as a sum of consecutive naturals, for example, 1240045 + ... + 1240402.

It is an arithmetic number, because the mean of its divisors is an integer number (111620160).

Almost surely, 2^444000013 is an apocalyptic number.

It is an amenable number.

444000013 is a deficient number, since it is larger than the sum of its proper divisors (2480627).

444000013 is a wasteful number, since it uses less digits than its factorization.

444000013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2480626.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 444000013 is about 21071.3078141818. The cubic root of 444000013 is about 762.8883700309. Note that the first 3 decimals are identical.

Adding to 444000013 its reverse (310000444), we get a palindrome (754000457).

The spelling of 444000013 in words is "four hundred forty-four million, thirteen", and thus it is an aban number.