444044040399 has 24 divisors (see below), whose sum is σ = 642320736512. Its totient is φ = 295603292160.

The previous prime is 444044040389. The next prime is 444044040431. The reversal of 444044040399 is 993040440444.

444044040399 is a `hidden beast` number, since 44 + 40 + 440 + 40 + 3 + 99 = 666.

It is not a de Polignac number, because 444044040399 - 2²⁰ = 444042991823 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444044040379) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20660739 + ... + 20682219.

Almost surely, 2^444044040399 is an apocalyptic number.

444044040399 is a deficient number, since it is larger than the sum of its proper divisors (198276696113).

444044040399 is a wasteful number, since it uses less digits than its factorization.

444044040399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24687 (or 24684 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 45.

The spelling of 444044040399 in words is "four hundred forty-four billion, forty-four million, forty thousand, three hundred ninety-nine".