20198104 has 16 divisors (see below), whose sum is σ = 38162520. Its totient is φ = 10021440.

The previous prime is 20198099. The next prime is 20198111. The reversal of 20198104 is 40189102.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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, 8589 + ... + 10684.

Almost surely, 2^20198104 is an apocalyptic number.

It is an amenable number.

20198104 is a deficient number, since it is larger than the sum of its proper divisors (17964416).

20198104 is a wasteful number, since it uses less digits than its factorization.

20198104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19410 (or 19406 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 20198104 is about 4494.2300786675. The cubic root of 20198104 is about 272.3350470420.

It can be divided in two parts, 20198 and 104, that added together give a palindrome (20302).

The spelling of 20198104 in words is "twenty million, one hundred ninety-eight thousand, one hundred four".