20080186 has 16 divisors (see below), whose sum is σ = 35156736. Its totient is φ = 8422416.

The previous prime is 20080171. The next prime is 20080187. The reversal of 20080186 is 68108002.

It is a self number, because there is not a number n which added to its sum of digits gives 20080186.

It is not an unprimeable number, because it can be changed into a prime (20080187) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14601 + ... + 15916.

It is an arithmetic number, because the mean of its divisors is an integer number (2197296).

Almost surely, 2^20080186 is an apocalyptic number.

20080186 is a deficient number, since it is larger than the sum of its proper divisors (15076550).

20080186 is a wasteful number, since it uses less digits than its factorization.

20080186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30573.

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 20080186 is about 4481.0920543992. The cubic root of 20080186 is about 271.8040417452.

Adding to 20080186 its reverse (68108002), we get a palindrome (88188188).

The spelling of 20080186 in words is "twenty million, eighty thousand, one hundred eighty-six".