4005444405 has 16 divisors (see below), whose sum is σ = 6409497600. Its totient is φ = 2135974848.

The previous prime is 4005444323. The next prime is 4005444413. The reversal of 4005444405 is 5044445004.

It is a happy number.

4005444405 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4005444405 - 2⁷ = 4005444277 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 218796 + ... + 236394.

It is an arithmetic number, because the mean of its divisors is an integer number (400593600).

Almost surely, 2^4005444405 is an apocalyptic number.

It is an amenable number.

4005444405 is a deficient number, since it is larger than the sum of its proper divisors (2404053195).

4005444405 is a wasteful number, since it uses less digits than its factorization.

4005444405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32780.

The product of its (nonzero) digits is 25600, while the sum is 30.

The square root of 4005444405 is about 63288.5803680253. The cubic root of 4005444405 is about 1588.1209299767.

Adding to 4005444405 its reverse (5044445004), we get a palindrome (9049889409).

The spelling of 4005444405 in words is "four billion, five million, four hundred forty-four thousand, four hundred five".