20848856 has 32 divisors (see below), whose sum is σ = 46621440. Its totient is φ = 8546208.

The previous prime is 20848837. The next prime is 20848897. The reversal of 20848856 is 65884802.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

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, 6806 + ... + 9381.

It is an arithmetic number, because the mean of its divisors is an integer number (1456920).

Almost surely, 2^20848856 is an apocalyptic number.

It is an amenable number.

20848856 is an abundant number, since it is smaller than the sum of its proper divisors (25772584).

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

20848856 is a wasteful number, since it uses less digits than its factorization.

20848856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16223 (or 16219 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 41.

The square root of 20848856 is about 4566.0547521903. The cubic root of 20848856 is about 275.2289267300.

The spelling of 20848856 in words is "twenty million, eight hundred forty-eight thousand, eight hundred fifty-six".