4005043405 has 32 divisors (see below), whose sum is σ = 5489285760. Its totient is φ = 2778343680.

The previous prime is 4005043403. The next prime is 4005043411. The reversal of 4005043405 is 5043405004.

It is not a de Polignac number, because 4005043405 - 2¹ = 4005043403 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4005043405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4005043403) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 117259 + ... + 147511.

It is an arithmetic number, because the mean of its divisors is an integer number (171540180).

Almost surely, 2^4005043405 is an apocalyptic number.

It is an amenable number.

4005043405 is a deficient number, since it is larger than the sum of its proper divisors (1484242355).

4005043405 is a wasteful number, since it uses less digits than its factorization.

4005043405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30381.

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 4005043405 is about 63285.4122606466. The cubic root of 4005043405 is about 1588.0679306353.

Adding to 4005043405 its reverse (5043405004), we get a palindrome (9048448409).

The spelling of 4005043405 in words is "four billion, five million, forty-three thousand, four hundred five".