40505875 has 32 divisors (see below), whose sum is σ = 53748864. Its totient is φ = 30412800.

The previous prime is 40505873. The next prime is 40505893. The reversal of 40505875 is 57850504.

It is not a de Polignac number, because 40505875 - 2¹ = 40505873 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40505875.

It is not an unprimeable number, because it can be changed into a prime (40505873) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 209779 + ... + 209971.

It is an arithmetic number, because the mean of its divisors is an integer number (1679652).

Almost surely, 2^40505875 is an apocalyptic number.

40505875 is a deficient number, since it is larger than the sum of its proper divisors (13242989).

40505875 is a wasteful number, since it uses less digits than its factorization.

40505875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304 (or 294 counting only the distinct ones).

The product of its (nonzero) digits is 28000, while the sum is 34.

The square root of 40505875 is about 6364.4225975339. The cubic root of 40505875 is about 343.4308773858.

The spelling of 40505875 in words is "forty million, five hundred five thousand, eight hundred seventy-five".