20124186 has 8 divisors (see below), whose sum is σ = 40248384. Its totient is φ = 6708060.

The previous prime is 20124179. The next prime is 20124191. The reversal of 20124186 is 68142102.

It is a sphenic number, since it is the product of 3 distinct primes.

20124186 is an admirable number.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1677010 + ... + 1677021.

It is an arithmetic number, because the mean of its divisors is an integer number (5031048).

Almost surely, 2^20124186 is an apocalyptic number.

20124186 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20124186 is a wasteful number, since it uses less digits than its factorization.

20124186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3354036.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 20124186 is about 4485.9988854212. The cubic root of 20124186 is about 272.0024239259.

Adding to 20124186 its reverse (68142102), we get a palindrome (88266288).

The spelling of 20124186 in words is "twenty million, one hundred twenty-four thousand, one hundred eighty-six".