20310716 has 12 divisors (see below), whose sum is σ = 37634688. Its totient is φ = 9557952.

The previous prime is 20310709. The next prime is 20310737. The reversal of 20310716 is 61701302.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149276 + ... + 149411.

It is an arithmetic number, because the mean of its divisors is an integer number (3136224).

Almost surely, 2^20310716 is an apocalyptic number.

It is an amenable number.

20310716 is a deficient number, since it is larger than the sum of its proper divisors (17323972).

20310716 is a wasteful number, since it uses less digits than its factorization.

20310716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298708 (or 298706 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 20310716 is about 4506.7411729541. The cubic root of 20310716 is about 272.8402326549.

The spelling of 20310716 in words is "twenty million, three hundred ten thousand, seven hundred sixteen".