40400336671 has 16 divisors (see below), whose sum is σ = 45127814400. Its totient is φ = 35989386048.

The previous prime is 40400336623. The next prime is 40400336687. The reversal of 40400336671 is 17663300404.

It is a cyclic number.

It is not a de Polignac number, because 40400336671 - 2⁹ = 40400336159 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 (40400330671) 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 15 ways as a sum of consecutive naturals, for example, 757686 + ... + 809251.

It is an arithmetic number, because the mean of its divisors is an integer number (2820488400).

Almost surely, 2^40400336671 is an apocalyptic number.

40400336671 is a deficient number, since it is larger than the sum of its proper divisors (4727477729).

40400336671 is a wasteful number, since it uses less digits than its factorization.

40400336671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1567038.

The product of its (nonzero) digits is 36288, while the sum is 34.

The spelling of 40400336671 in words is "forty billion, four hundred million, three hundred thirty-six thousand, six hundred seventy-one".