20104892 has 6 divisors (see below), whose sum is σ = 35183568. Its totient is φ = 10052444.

The previous prime is 20104867. The next prime is 20104901. The reversal of 20104892 is 29840102.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2513108 + ... + 2513115.

It is an arithmetic number, because the mean of its divisors is an integer number (5863928).

Almost surely, 2^20104892 is an apocalyptic number.

It is an amenable number.

20104892 is a deficient number, since it is larger than the sum of its proper divisors (15078676).

20104892 is a wasteful number, since it uses less digits than its factorization.

20104892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5026227 (or 5026225 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 20104892 is about 4483.8479010778. The cubic root of 20104892 is about 271.9154689747.

Adding to 20104892 its reverse (29840102), we get a palindrome (49944994).

The spelling of 20104892 in words is "twenty million, one hundred four thousand, eight hundred ninety-two".