40013440401 has 16 divisors (see below), whose sum is σ = 58222810368. Its totient is φ = 24241635600.

The previous prime is 40013440391. The next prime is 40013440429. The reversal of 40013440401 is 10404431004.

It is not a de Polignac number, because 40013440401 - 2³¹ = 37865956753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40013440451) 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 15 ways as a sum of consecutive naturals, for example, 131871 + ... + 312116.

It is an arithmetic number, because the mean of its divisors is an integer number (3638925648).

Almost surely, 2^40013440401 is an apocalyptic number.

It is an amenable number.

40013440401 is a deficient number, since it is larger than the sum of its proper divisors (18209369967).

40013440401 is a wasteful number, since it uses less digits than its factorization.

40013440401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446732.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 40013440401 its reverse (10404431004), we get a palindrome (50417871405).

The spelling of 40013440401 in words is "forty billion, thirteen million, four hundred forty thousand, four hundred one".