40605220401 has 16 divisors (see below), whose sum is σ = 54260357760. Its totient is φ = 27010184960.

The previous prime is 40605220391. The next prime is 40605220427. The reversal of 40605220401 is 10402250604.

It is a cyclic number.

It is not a de Polignac number, because 40605220401 - 2¹⁰ = 40605219377 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40605220501) 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, 2590255 + ... + 2605883.

It is an arithmetic number, because the mean of its divisors is an integer number (3391272360).

Almost surely, 2^40605220401 is an apocalyptic number.

It is an amenable number.

40605220401 is a deficient number, since it is larger than the sum of its proper divisors (13655137359).

40605220401 is a wasteful number, since it uses less digits than its factorization.

40605220401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17496.

The product of its (nonzero) digits is 1920, while the sum is 24.

The spelling of 40605220401 in words is "forty billion, six hundred five million, two hundred twenty thousand, four hundred one".