40855738 has 32 divisors (see below), whose sum is σ = 80432640. Its totient is φ = 15078960.

The previous prime is 40855723. The next prime is 40855741. The reversal of 40855738 is 83755804.

It is a self number, because there is not a number n which added to its sum of digits gives 40855738.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4056 + ... + 9907.

It is an arithmetic number, because the mean of its divisors is an integer number (2513520).

Almost surely, 2^40855738 is an apocalyptic number.

40855738 is a deficient number, since it is larger than the sum of its proper divisors (39576902).

40855738 is a wasteful number, since it uses less digits than its factorization.

40855738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14002.

The product of its (nonzero) digits is 134400, while the sum is 40.

The square root of 40855738 is about 6391.8493411532. The cubic root of 40855738 is about 344.4168205465.

The spelling of 40855738 in words is "forty million, eight hundred fifty-five thousand, seven hundred thirty-eight".