40705688 has 16 divisors (see below), whose sum is σ = 76401360. Its totient is φ = 20332000.

The previous prime is 40705681. The next prime is 40705711. The reversal of 40705688 is 88650704.

40705688 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40705681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8453 + ... + 12363.

It is an arithmetic number, because the mean of its divisors is an integer number (4775085).

Almost surely, 2^40705688 is an apocalyptic number.

It is an amenable number.

40705688 is a deficient number, since it is larger than the sum of its proper divisors (35695672).

40705688 is a wasteful number, since it uses less digits than its factorization.

40705688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5218 (or 5214 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 40705688 is about 6380.1009396404. The cubic root of 40705688 is about 343.9946591924.

The spelling of 40705688 in words is "forty million, seven hundred five thousand, six hundred eighty-eight".