4001441005 has 4 divisors (see below), whose sum is σ = 4801729212. Its totient is φ = 3201152800.

The previous prime is 4001440999. The next prime is 4001441027. The reversal of 4001441005 is 5001441004.

4001441005 is digitally balanced in base 2 and base 3, because in such bases 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 2774550276 + 1226890729 = 52674^2 + 35027^2 .

It is not a de Polignac number, because 4001441005 - 2⁹ = 4001440493 is a prime.

It is a Duffinian number.

It is a congruent 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, 400144096 + ... + 400144105.

It is an arithmetic number, because the mean of its divisors is an integer number (1200432303).

Almost surely, 2^4001441005 is an apocalyptic number.

It is an amenable number.

4001441005 is a deficient number, since it is larger than the sum of its proper divisors (800288207).

4001441005 is an equidigital number, since it uses as much as digits as its factorization.

4001441005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800288206.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 4001441005 is about 63256.9443223430. The cubic root of 4001441005 is about 1587.5916501534.

Adding to 4001441005 its reverse (5001441004), we get a palindrome (9002882009).

Subtracting 4001441005 from its reverse (5001441004), we obtain a palindrome (999999999).

The spelling of 4001441005 in words is "four billion, one million, four hundred forty-one thousand, five".