20106186 has 32 divisors (see below), whose sum is σ = 42768000. Its totient is φ = 6287424.

The previous prime is 20106173. The next prime is 20106187. The reversal of 20106186 is 68160102.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20106187) 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 15 ways as a sum of consecutive naturals, for example, 5940 + ... + 8688.

It is an arithmetic number, because the mean of its divisors is an integer number (1336500).

Almost surely, 2^20106186 is an apocalyptic number.

20106186 is an abundant number, since it is smaller than the sum of its proper divisors (22661814).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20106186 is a wasteful number, since it uses less digits than its factorization.

20106186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2830.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 20106186 is about 4483.9921944624. The cubic root of 20106186 is about 271.9213025644.

Adding to 20106186 its reverse (68160102), we get a palindrome (88266288).

The spelling of 20106186 in words is "twenty million, one hundred six thousand, one hundred eighty-six".