40106185 has 16 divisors (see below), whose sum is σ = 55224576. Its totient is φ = 27390528.

The previous prime is 40106177. The next prime is 40106189. The reversal of 40106185 is 58160104.

It is a cyclic number.

It is not a de Polignac number, because 40106185 - 2³ = 40106177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40106189) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7027 + ... + 11383.

It is an arithmetic number, because the mean of its divisors is an integer number (3451536).

Almost surely, 2^40106185 is an apocalyptic number.

It is an amenable number.

40106185 is a deficient number, since it is larger than the sum of its proper divisors (15118391).

40106185 is a wasteful number, since it uses less digits than its factorization.

40106185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4632.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 40106185 is about 6332.9444178834. The cubic root of 40106185 is about 342.2975449392.

Adding to 40106185 its reverse (58160104), we get a palindrome (98266289).

The spelling of 40106185 in words is "forty million, one hundred six thousand, one hundred eighty-five".