40238326573 has 16 divisors (see below), whose sum is σ = 41103591984. Its totient is φ = 39383193600.

The previous prime is 40238326549. The next prime is 40238326607. The reversal of 40238326573 is 37562383204.

It can be written as a sum of positive squares in 8 ways, for example, as 789216649 + 39449109924 = 28093^2 + 198618^2 .

It is a cyclic number.

It is not a de Polignac number, because 40238326573 - 2⁹ = 40238326061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40238321573) 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, 10941411 + ... + 10945087.

It is an arithmetic number, because the mean of its divisors is an integer number (2568974499).

Almost surely, 2^40238326573 is an apocalyptic number.

It is an amenable number.

40238326573 is a deficient number, since it is larger than the sum of its proper divisors (865265411).

40238326573 is a wasteful number, since it uses less digits than its factorization.

40238326573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4992.

The product of its (nonzero) digits is 725760, while the sum is 43.

The spelling of 40238326573 in words is "forty billion, two hundred thirty-eight million, three hundred twenty-six thousand, five hundred seventy-three".