4040444405 has 4 divisors (see below), whose sum is σ = 4848533292. Its totient is φ = 3232355520.

The previous prime is 4040444393. The next prime is 4040444407. The reversal of 4040444405 is 5044440404.

4040444405 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2957836996 + 1082607409 = 54386^2 + 32903^2 .

It is a de Polignac number, because none of the positive numbers 2^k-4040444405 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4040444407) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 404044436 + ... + 404044445.

It is an arithmetic number, because the mean of its divisors is an integer number (1212133323).

Almost surely, 2^4040444405 is an apocalyptic number.

It is an amenable number.

4040444405 is a deficient number, since it is larger than the sum of its proper divisors (808088887).

4040444405 is an equidigital number, since it uses as much as digits as its factorization.

4040444405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808088886.

The product of its (nonzero) digits is 20480, while the sum is 29.

The square root of 4040444405 is about 63564.4901261703. The cubic root of 4040444405 is about 1592.7332449515.

Adding to 4040444405 its reverse (5044440404), we get a palindrome (9084884809).

The spelling of 4040444405 in words is "four billion, forty million, four hundred forty-four thousand, four hundred five".