444128965 has 16 divisors (see below), whose sum is σ = 635574528. Its totient is φ = 291303936.

The previous prime is 444128959. The next prime is 444128977. The reversal of 444128965 is 569821444.

It is not a de Polignac number, because 444128965 - 2¹³ = 444120773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 275052 + ... + 276661.

It is an arithmetic number, because the mean of its divisors is an integer number (39723408).

Almost surely, 2^444128965 is an apocalyptic number.

It is an amenable number.

444128965 is a deficient number, since it is larger than the sum of its proper divisors (191445563).

444128965 is a wasteful number, since it uses less digits than its factorization.

444128965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551748.

The product of its digits is 276480, while the sum is 43.

The square root of 444128965 is about 21074.3674875428. The cubic root of 444128965 is about 762.9622187215.

The spelling of 444128965 in words is "four hundred forty-four million, one hundred twenty-eight thousand, nine hundred sixty-five".