4440001005 has 48 divisors (see below), whose sum is σ = 8414205696. Its totient is φ = 2147967360.

The previous prime is 4440001003. The next prime is 4440001021. The reversal of 4440001005 is 5001000444.

It is not a de Polignac number, because 4440001005 - 2¹ = 4440001003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4440001001) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 219499 + ... + 238871.

It is an arithmetic number, because the mean of its divisors is an integer number (175295952).

Almost surely, 2^4440001005 is an apocalyptic number.

4440001005 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4440001005 is a deficient number, since it is larger than the sum of its proper divisors (3974204691).

4440001005 is a wasteful number, since it uses less digits than its factorization.

4440001005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19858 (or 19855 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 4440001005 is about 66633.3325371019. The cubic root of 4440001005 is about 1643.5932769853.

Adding to 4440001005 its reverse (5001000444), we get a palindrome (9441001449).

The spelling of 4440001005 in words is "four billion, four hundred forty million, one thousand, five".