40450433405 has 8 divisors (see below), whose sum is σ = 48549044952. Its totient is φ = 32354663488.

The previous prime is 40450433389. The next prime is 40450433407. The reversal of 40450433405 is 50433405404.

It can be written as a sum of positive squares in 4 ways, for example, as 3991586041 + 36458847364 = 63179^2 + 190942^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 40450433405 - 2⁴ = 40450433389 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 (40450433407) 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 7 ways as a sum of consecutive naturals, for example, 678962 + ... + 736131.

It is an arithmetic number, because the mean of its divisors is an integer number (6068630619).

Almost surely, 2^40450433405 is an apocalyptic number.

It is an amenable number.

40450433405 is a deficient number, since it is larger than the sum of its proper divisors (8098611547).

40450433405 is a wasteful number, since it uses less digits than its factorization.

40450433405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1420815.

The product of its (nonzero) digits is 57600, while the sum is 32.

Adding to 40450433405 its reverse (50433405404), we get a palindrome (90883838809).

The spelling of 40450433405 in words is "forty billion, four hundred fifty million, four hundred thirty-three thousand, four hundred five".