444316689 has 6 divisors (see below), whose sum is σ = 641790786. Its totient is φ = 296211120.

The previous prime is 444316673. The next prime is 444316703. The reversal of 444316689 is 986613444.

It can be written as a sum of positive squares in only one way, i.e., 390734289 + 53582400 = 19767^2 + 7320^2 .

It is not a de Polignac number, because 444316689 - 2⁴ = 444316673 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (444316889) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24684252 + ... + 24684269.

It is an arithmetic number, because the mean of its divisors is an integer number (106965131).

Almost surely, 2^444316689 is an apocalyptic number.

It is an amenable number.

444316689 is a deficient number, since it is larger than the sum of its proper divisors (197474097).

444316689 is a wasteful number, since it uses less digits than its factorization.

444316689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49368527 (or 49368524 counting only the distinct ones).

The product of its digits is 497664, while the sum is 45.

The square root of 444316689 is about 21078.8208636062. The cubic root of 444316689 is about 763.0696996231.

The spelling of 444316689 in words is "four hundred forty-four million, three hundred sixteen thousand, six hundred eighty-nine".