40404343771 has 16 divisors (see below), whose sum is σ = 46414569600. Its totient is φ = 34785072000.

The previous prime is 40404343747. The next prime is 40404343781. The reversal of 40404343771 is 17734340404.

It is a cyclic number.

It is not a de Polignac number, because 40404343771 - 2¹⁷ = 40404212699 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 40404343771.

It is not an unprimeable number, because it can be changed into a prime (40404343711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 550900 + ... + 619918.

It is an arithmetic number, because the mean of its divisors is an integer number (2900910600).

Almost surely, 2^40404343771 is an apocalyptic number.

40404343771 is a deficient number, since it is larger than the sum of its proper divisors (6010225829).

40404343771 is a wasteful number, since it uses less digits than its factorization.

40404343771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71850.

The product of its (nonzero) digits is 112896, while the sum is 37.

The spelling of 40404343771 in words is "forty billion, four hundred four million, three hundred forty-three thousand, seven hundred seventy-one".