40946320393 has 4 divisors (see below), whose sum is σ = 44668713168. Its totient is φ = 37223927620.

The previous prime is 40946320357. The next prime is 40946320397. The reversal of 40946320393 is 39302364904.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 40946320393 - 2¹⁷ = 40946189321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40946320397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1861196371 + ... + 1861196392.

It is an arithmetic number, because the mean of its divisors is an integer number (11167178292).

Almost surely, 2^40946320393 is an apocalyptic number.

It is an amenable number.

40946320393 is a deficient number, since it is larger than the sum of its proper divisors (3722392775).

40946320393 is a wasteful number, since it uses less digits than its factorization.

40946320393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3722392774.

The product of its (nonzero) digits is 419904, while the sum is 43.

The spelling of 40946320393 in words is "forty billion, nine hundred forty-six million, three hundred twenty thousand, three hundred ninety-three".