40405435041013 has 16 divisors (see below), whose sum is σ = 46541680574464. Its totient is φ = 34360204762800.

The previous prime is 40405435040977. The next prime is 40405435041047. The reversal of 40405435041013 is 31014053450404.

It is not a de Polignac number, because 40405435041013 - 2²¹ = 40405432943861 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 40405435041013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40405435041113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 181037338 + ... + 181260388.

It is an arithmetic number, because the mean of its divisors is an integer number (2908855035904).

Almost surely, 2^{40405435041013} is an apocalyptic number.

It is an amenable number.

40405435041013 is a deficient number, since it is larger than the sum of its proper divisors (6136245533451).

40405435041013 is a wasteful number, since it uses less digits than its factorization.

40405435041013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426952.

The product of its (nonzero) digits is 57600, while the sum is 34.

Adding to 40405435041013 its reverse (31014053450404), we get a palindrome (71419488491417).

The spelling of 40405435041013 in words is "forty trillion, four hundred five billion, four hundred thirty-five million, forty-one thousand, thirteen".