It is a happy number.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10340702 = 2 ⋅5170351.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-20704301 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is a self number, because there is not a number n which added to its sum of digits gives 20704301.
It is a congruent number.
Almost surely, 220704301 is an apocalyptic number.
It is an amenable number.
20704301 is an equidigital number, since it uses as much as digits as its factorization.
20704301 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 900210.
The square root of 20704301 is about 4550.1979077838. The cubic root of 20704301 is about 274.5913533875.
The spelling of 20704301 in words is "twenty million, seven hundred four thousand, three hundred one".