20680592 has 20 divisors (see below), whose sum is σ = 41001840. Its totient is φ = 10099488.

The previous prime is 20680591. The next prime is 20680603. The reversal of 20680592 is 29508602.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (20680591) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 14342 + ... + 15717.

It is an arithmetic number, because the mean of its divisors is an integer number (2050092).

Almost surely, 2^20680592 is an apocalyptic number.

It is an amenable number.

20680592 is a deficient number, since it is larger than the sum of its proper divisors (20321248).

20680592 is a wasteful number, since it uses less digits than its factorization.

20680592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30110 (or 30104 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 20680592 is about 4547.5918902206. The cubic root of 20680592 is about 274.4864996020.

The spelling of 20680592 in words is "twenty million, six hundred eighty thousand, five hundred ninety-two".