20841056 has 24 divisors (see below), whose sum is σ = 41613264. Its totient is φ = 10272640.

The previous prime is 20841049. The next prime is 20841089. The reversal of 20841056 is 65014802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2315 + ... + 6858.

It is an arithmetic number, because the mean of its divisors is an integer number (1733886).

Almost surely, 2^20841056 is an apocalyptic number.

It is an amenable number.

20841056 is a deficient number, since it is larger than the sum of its proper divisors (20772208).

20841056 is an equidigital number, since it uses as much as digits as its factorization.

20841056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9254 (or 9246 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 20841056 is about 4565.2005432401. The cubic root of 20841056 is about 275.1945994523.

Adding to 20841056 its reverse (65014802), we get a palindrome (85855858).

The spelling of 20841056 in words is "twenty million, eight hundred forty-one thousand, fifty-six".