20104898 has 16 divisors (see below), whose sum is σ = 34330176. Its totient is φ = 8741040.

The previous prime is 20104867. The next prime is 20104901. The reversal of 20104898 is 89840102.

It is a happy 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 7 ways as a sum of consecutive naturals, for example, 19361 + ... + 20372.

It is an arithmetic number, because the mean of its divisors is an integer number (2145636).

Almost surely, 2^20104898 is an apocalyptic number.

20104898 is a deficient number, since it is larger than the sum of its proper divisors (14225278).

20104898 is a wasteful number, since it uses less digits than its factorization.

20104898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39769.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 20104898 is about 4483.8485701460. The cubic root of 20104898 is about 271.9154960244.

The spelling of 20104898 in words is "twenty million, one hundred four thousand, eight hundred ninety-eight".