4001144305 has 4 divisors (see below), whose sum is σ = 4801373172. Its totient is φ = 3200915440.

The previous prime is 4001144237. The next prime is 4001144333. The reversal of 4001144305 is 5034411004.

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 881139856 + 3120004449 = 29684^2 + 55857^2 .

It is not a de Polignac number, because 4001144305 - 2¹⁵ = 4001111537 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 400114426 + ... + 400114435.

It is an arithmetic number, because the mean of its divisors is an integer number (1200343293).

Almost surely, 2^4001144305 is an apocalyptic number.

It is an amenable number.

4001144305 is a deficient number, since it is larger than the sum of its proper divisors (800228867).

4001144305 is an equidigital number, since it uses as much as digits as its factorization.

4001144305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800228866.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 4001144305 is about 63254.5990818059. The cubic root of 4001144305 is about 1587.5524101159.

Adding to 4001144305 its reverse (5034411004), we get a palindrome (9035555309).

The spelling of 4001144305 in words is "four billion, one million, one hundred forty-four thousand, three hundred five".