40403050405 has 8 divisors (see below), whose sum is σ = 48485455992. Its totient is φ = 32321243328.

The previous prime is 40403050399. The next prime is 40403050433. The reversal of 40403050405 is 50405030404.

It can be written as a sum of positive squares in 4 ways, for example, as 1419707041 + 38983343364 = 37679^2 + 197442^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40403050405 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 40403050405.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 15447 + ... + 284683.

It is an arithmetic number, because the mean of its divisors is an integer number (6060681999).

Almost surely, 2^40403050405 is an apocalyptic number.

It is an amenable number.

40403050405 is a deficient number, since it is larger than the sum of its proper divisors (8082405587).

40403050405 is a wasteful number, since it uses less digits than its factorization.

40403050405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299255.

The product of its (nonzero) digits is 4800, while the sum is 25.

Adding to 40403050405 its reverse (50405030404), we get a palindrome (90808080809).

The spelling of 40403050405 in words is "forty billion, four hundred three million, fifty thousand, four hundred five".