40305672017405 has 8 divisors (see below), whose sum is σ = 48367692863232. Its totient is φ = 32243946652368.

The previous prime is 40305672017327. The next prime is 40305672017449. The reversal of 40305672017405 is 50471027650304.

It is a happy number.

40305672017405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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-40305672017405 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73569989 + ... + 74115818.

It is an arithmetic number, because the mean of its divisors is an integer number (6045961607904).

Almost surely, 2^{40305672017405} is an apocalyptic number.

It is an amenable number.

40305672017405 is a deficient number, since it is larger than the sum of its proper divisors (8062020845827).

40305672017405 is a wasteful number, since it uses less digits than its factorization.

40305672017405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147740395.

The product of its (nonzero) digits is 705600, while the sum is 44.

Adding to 40305672017405 its reverse (50471027650304), we get a palindrome (90776699667709).

The spelling of 40305672017405 in words is "forty trillion, three hundred five billion, six hundred seventy-two million, seventeen thousand, four hundred five".