40865668 has 12 divisors (see below), whose sum is σ = 71636992. Its totient is φ = 20397960.

The previous prime is 40865663. The next prime is 40865681. The reversal of 40865668 is 86656804.

It is not an unprimeable number, because it can be changed into a prime (40865663) 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, 5988 + ... + 10843.

Almost surely, 2^40865668 is an apocalyptic number.

It is an amenable number.

40865668 is a deficient number, since it is larger than the sum of its proper divisors (30771324).

40865668 is a wasteful number, since it uses less digits than its factorization.

40865668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17442 (or 17440 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 43.

The square root of 40865668 is about 6392.6260644590. The cubic root of 40865668 is about 344.4447218250. Note that the first 3 decimals are identical.

The spelling of 40865668 in words is "forty million, eight hundred sixty-five thousand, six hundred sixty-eight".