40320120245 has 16 divisors (see below), whose sum is σ = 49516750272. Its totient is φ = 31501249920.

The previous prime is 40320120151. The next prime is 40320120257. The reversal of 40320120245 is 54202102304.

It is a happy number.

It is not a de Polignac number, because 40320120245 - 2⁸ = 40320119989 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40320120245.

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 15 ways as a sum of consecutive naturals, for example, 2374385 + ... + 2391305.

It is an arithmetic number, because the mean of its divisors is an integer number (3094796892).

Almost surely, 2^40320120245 is an apocalyptic number.

It is an amenable number.

40320120245 is a deficient number, since it is larger than the sum of its proper divisors (9196630027).

40320120245 is a wasteful number, since it uses less digits than its factorization.

40320120245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28052.

The product of its (nonzero) digits is 1920, while the sum is 23.

Adding to 40320120245 its reverse (54202102304), we get a palindrome (94522222549).

The spelling of 40320120245 in words is "forty billion, three hundred twenty million, one hundred twenty thousand, two hundred forty-five".