20108316 has 24 divisors (see below), whose sum is σ = 48188560. Its totient is φ = 6521472.

The previous prime is 20108311. The next prime is 20108329. The reversal of 20108316 is 61380102.

It is a junction number, because it is equal to n+sod(n) for n = 20108292 and 20108301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20108311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22201 + ... + 23088.

Almost surely, 2^20108316 is an apocalyptic number.

It is an amenable number.

20108316 is an abundant number, since it is smaller than the sum of its proper divisors (28080244).

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

20108316 is a wasteful number, since it uses less digits than its factorization.

20108316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45333 (or 45331 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 20108316 is about 4484.2296997366. The cubic root of 20108316 is about 271.9309044505.

Adding to 20108316 its reverse (61380102), we get a palindrome (81488418).

The spelling of 20108316 in words is "twenty million, one hundred eight thousand, three hundred sixteen".