20785848 has 64 divisors (see below), whose sum is σ = 55488000. Its totient is φ = 6469632.

The previous prime is 20785819. The next prime is 20785871. The reversal of 20785848 is 84858702.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 35736 + ... + 36312.

It is an arithmetic number, because the mean of its divisors is an integer number (867000).

Almost surely, 2^20785848 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20785848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27744000).

20785848 is an abundant number, since it is smaller than the sum of its proper divisors (34702152).

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

20785848 is a wasteful number, since it uses less digits than its factorization.

20785848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684 (or 680 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 42.

The square root of 20785848 is about 4559.1499207637. The cubic root of 20785848 is about 274.9513875504.

The spelling of 20785848 in words is "twenty million, seven hundred eighty-five thousand, eight hundred forty-eight".