20198182 has 8 divisors (see below), whose sum is σ = 30597552. Its totient is φ = 9999000.

The previous prime is 20198147. The next prime is 20198183. The reversal of 20198182 is 28189102.

It is a happy number.

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

It is a super-2 number, since 2×20198182² = 815933112210248, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20198183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49794 + ... + 50197.

It is an arithmetic number, because the mean of its divisors is an integer number (3824694).

Almost surely, 2^20198182 is an apocalyptic number.

20198182 is a deficient number, since it is larger than the sum of its proper divisors (10399370).

20198182 is a wasteful number, since it uses less digits than its factorization.

20198182 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100094.

The product of its (nonzero) digits is 2304, while the sum is 31.

The square root of 20198182 is about 4494.2387564525. The cubic root of 20198182 is about 272.3353976047.

It can be divided in two parts, 2019 and 8182, that added together give a palindrome (10201).

The spelling of 20198182 in words is "twenty million, one hundred ninety-eight thousand, one hundred eighty-two".