444505005 has 24 divisors (see below), whose sum is σ = 880543872. Its totient is φ = 203202144.

The previous prime is 444504961. The next prime is 444505007. The reversal of 444505005 is 500505444.

It is not a de Polignac number, because 444505005 - 2²³ = 436116397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 444505005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444505007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 705249 + ... + 705878.

It is an arithmetic number, because the mean of its divisors is an integer number (36689328).

Almost surely, 2^444505005 is an apocalyptic number.

444505005 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

444505005 is a deficient number, since it is larger than the sum of its proper divisors (436038867).

444505005 is a wasteful number, since it uses less digits than its factorization.

444505005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1411145 (or 1411142 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

The square root of 444505005 is about 21083.2873385533. The cubic root of 444505005 is about 763.1774890599.

It can be divided in two parts, 44450 and 5005, that added together give a triangular number (49455 = T₃₁₄).

The spelling of 444505005 in words is "four hundred forty-four million, five hundred five thousand, five".