20848172 has 12 divisors (see below), whose sum is σ = 37374456. Its totient is φ = 10169760.

The previous prime is 20848147. The next prime is 20848199. The reversal of 20848172 is 27184802.

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 in 3 ways as a sum of consecutive naturals, for example, 63398 + ... + 63725.

It is an arithmetic number, because the mean of its divisors is an integer number (3114538).

Almost surely, 2^20848172 is an apocalyptic number.

It is an amenable number.

20848172 is a deficient number, since it is larger than the sum of its proper divisors (16526284).

20848172 is a wasteful number, since it uses less digits than its factorization.

20848172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127168 (or 127166 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 32.

The square root of 20848172 is about 4565.9798510287. The cubic root of 20848172 is about 275.2259168343.

The spelling of 20848172 in words is "twenty million, eight hundred forty-eight thousand, one hundred seventy-two".