40340704068 has 72 divisors (see below), whose sum is σ = 116597120640. Its totient is φ = 11520247680.

The previous prime is 40340704067. The next prime is 40340704099. The reversal of 40340704068 is 86040704304.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (40340704067) 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 23 ways as a sum of consecutive naturals, for example, 488113 + ... + 564743.

Almost surely, 2^40340704068 is an apocalyptic number.

It is an amenable number.

40340704068 is an abundant number, since it is smaller than the sum of its proper divisors (76256416572).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40340704068 is a wasteful number, since it uses less digits than its factorization.

40340704068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78737 (or 78732 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The spelling of 40340704068 in words is "forty billion, three hundred forty million, seven hundred four thousand, sixty-eight".