4404401405 has 4 divisors (see below), whose sum is σ = 5285281692. Its totient is φ = 3523521120.

The previous prime is 4404401401. The next prime is 4404401411. The reversal of 4404401405 is 5041044044.

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 530334841 + 3874066564 = 23029^2 + 62242^2 .

It is not a de Polignac number, because 4404401405 - 2² = 4404401401 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 (4404401401) 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, 440440136 + ... + 440440145.

It is an arithmetic number, because the mean of its divisors is an integer number (1321320423).

Almost surely, 2^4404401405 is an apocalyptic number.

It is an amenable number.

4404401405 is a deficient number, since it is larger than the sum of its proper divisors (880880287).

4404401405 is an equidigital number, since it uses as much as digits as its factorization.

4404401405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880880286.

The product of its (nonzero) digits is 5120, while the sum is 26.

The square root of 4404401405 is about 66365.6643528866. The cubic root of 4404401405 is about 1639.1887477113.

Adding to 4404401405 its reverse (5041044044), we get a palindrome (9445445449).

The spelling of 4404401405 in words is "four billion, four hundred four million, four hundred one thousand, four hundred five".