40385008 has 20 divisors (see below), whose sum is σ = 78354360. Its totient is φ = 20164544.

The previous prime is 40385003. The next prime is 40385011. The reversal of 40385008 is 80058304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40385003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15066 + ... + 17542.

It is an arithmetic number, because the mean of its divisors is an integer number (3917718).

Almost surely, 2^40385008 is an apocalyptic number.

It is an amenable number.

40385008 is a deficient number, since it is larger than the sum of its proper divisors (37969352).

40385008 is a wasteful number, since it uses less digits than its factorization.

40385008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3504 (or 3498 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 40385008 is about 6354.9199837606. The cubic root of 40385008 is about 343.0889449653.

The spelling of 40385008 in words is "forty million, three hundred eighty-five thousand, eight".