40344455443 has 8 divisors (see below), whose sum is σ = 41409907200. Its totient is φ = 39287631240.

The previous prime is 40344455399. The next prime is 40344455447. The reversal of 40344455443 is 34455444304.

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 40344455443 - 2²¹ = 40342358291 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40344455396 and 40344455405.

It is not an unprimeable number, because it can be changed into a prime (40344455447) 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, 2147413 + ... + 2166118.

It is an arithmetic number, because the mean of its divisors is an integer number (5176238400).

Almost surely, 2^40344455443 is an apocalyptic number.

40344455443 is a deficient number, since it is larger than the sum of its proper divisors (1065451757).

40344455443 is a wasteful number, since it uses less digits than its factorization.

40344455443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4313777.

The product of its (nonzero) digits is 921600, while the sum is 40.

Adding to 40344455443 its reverse (34455444304), we get a palindrome (74799899747).

The spelling of 40344455443 in words is "forty billion, three hundred forty-four million, four hundred fifty-five thousand, four hundred forty-three".