20108072 has 32 divisors (see below), whose sum is σ = 39761280. Its totient is φ = 9514560.

The previous prime is 20108071. The next prime is 20108083. The reversal of 20108072 is 27080102.

It is not an unprimeable number, because it can be changed into a prime (20108071) 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, 18422 + ... + 19482.

It is an arithmetic number, because the mean of its divisors is an integer number (1242540).

Almost surely, 2^20108072 is an apocalyptic number.

It is an amenable number.

20108072 is a deficient number, since it is larger than the sum of its proper divisors (19653208).

20108072 is a wasteful number, since it uses less digits than its factorization.

20108072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1193 (or 1189 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 20108072 is about 4484.2024931976. The cubic root of 20108072 is about 271.9298045505.

Adding to 20108072 its reverse (27080102), we get a palindrome (47188174).

The spelling of 20108072 in words is "twenty million, one hundred eight thousand, seventy-two".