40538585 has 4 divisors (see below), whose sum is σ = 48646308. Its totient is φ = 32430864.

The previous prime is 40538573. The next prime is 40538599. The reversal of 40538585 is 58583504.

40538585 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9223369 + 31315216 = 3037^2 + 5596^2 .

It is a cyclic number.

It is not a de Polignac number, because 40538585 - 2¹⁴ = 40522201 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 4053854 + ... + 4053863.

It is an arithmetic number, because the mean of its divisors is an integer number (12161577).

Almost surely, 2^40538585 is an apocalyptic number.

It is an amenable number.

40538585 is a deficient number, since it is larger than the sum of its proper divisors (8107723).

40538585 is an equidigital number, since it uses as much as digits as its factorization.

40538585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8107722.

The product of its (nonzero) digits is 96000, while the sum is 38.

The square root of 40538585 is about 6366.9918328831. The cubic root of 40538585 is about 343.5232969134.

The spelling of 40538585 in words is "forty million, five hundred thirty-eight thousand, five hundred eighty-five".