4381975405 has 4 divisors (see below), whose sum is σ = 5258370492. Its totient is φ = 3505580320.

The previous prime is 4381975391. The next prime is 4381975441. The reversal of 4381975405 is 5045791834.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5045791834 = 2 ⋅2522895917.

It can be written as a sum of positive squares in 2 ways, for example, as 2299969764 + 2082005641 = 47958^2 + 45629^2 .

It is not a de Polignac number, because 4381975405 - 2¹⁵ = 4381942637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 438197536 + ... + 438197545.

It is an arithmetic number, because the mean of its divisors is an integer number (1314592623).

Almost surely, 2^4381975405 is an apocalyptic number.

It is an amenable number.

4381975405 is a deficient number, since it is larger than the sum of its proper divisors (876395087).

4381975405 is an equidigital number, since it uses as much as digits as its factorization.

4381975405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 876395086.

The product of its (nonzero) digits is 604800, while the sum is 46.

The square root of 4381975405 is about 66196.4908813148. The cubic root of 4381975405 is about 1636.4019130642.

The spelling of 4381975405 in words is "four billion, three hundred eighty-one million, nine hundred seventy-five thousand, four hundred five".