20304716 has 6 divisors (see below), whose sum is σ = 35533260. Its totient is φ = 10152356.

The previous prime is 20304701. The next prime is 20304733. The reversal of 20304716 is 61740302.

It is a junction number, because it is equal to n+sod(n) for n = 20304691 and 20304700.

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, 2538086 + ... + 2538093.

It is an arithmetic number, because the mean of its divisors is an integer number (5922210).

Almost surely, 2^20304716 is an apocalyptic number.

It is an amenable number.

20304716 is a deficient number, since it is larger than the sum of its proper divisors (15228544).

20304716 is a wasteful number, since it uses less digits than its factorization.

20304716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5076183 (or 5076181 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 20304716 is about 4506.0754543172. The cubic root of 20304716 is about 272.8133633802.

The spelling of 20304716 in words is "twenty million, three hundred four thousand, seven hundred sixteen".