20104304 has 20 divisors (see below), whose sum is σ = 42493560. Its totient is φ = 9138240.

The previous prime is 20104241. The next prime is 20104307. The reversal of 20104304 is 40340102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20104307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56939 + ... + 57290.

It is an arithmetic number, because the mean of its divisors is an integer number (2124678).

Almost surely, 2^20104304 is an apocalyptic number.

It is an amenable number.

20104304 is an abundant number, since it is smaller than the sum of its proper divisors (22389256).

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

20104304 is a wasteful number, since it uses less digits than its factorization.

20104304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114248 (or 114242 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 20104304 is about 4483.7823319158. The cubic root of 20104304 is about 271.9128180800.

Adding to 20104304 its reverse (40340102), we get a palindrome (60444406).

The spelling of 20104304 in words is "twenty million, one hundred four thousand, three hundred four".