40080185 has 4 divisors (see below), whose sum is σ = 48096228. Its totient is φ = 32064144.

The previous prime is 40080181. The next prime is 40080197. The reversal of 40080185 is 58108004.

40080185 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 12538681 + 27541504 = 3541^2 + 5248^2 .

It is a cyclic number.

It is not a de Polignac number, because 40080185 - 2² = 40080181 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40080181) by changing a digit.

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, 4008014 + ... + 4008023.

It is an arithmetic number, because the mean of its divisors is an integer number (12024057).

Almost surely, 2^40080185 is an apocalyptic number.

It is an amenable number.

40080185 is a deficient number, since it is larger than the sum of its proper divisors (8016043).

40080185 is an equidigital number, since it uses as much as digits as its factorization.

40080185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8016042.

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 40080185 is about 6330.8913274515. The cubic root of 40080185 is about 342.2235608390.

Adding to 40080185 its reverse (58108004), we get a palindrome (98188189).

The spelling of 40080185 in words is "forty million, eighty thousand, one hundred eighty-five".