20810882 has 16 divisors (see below), whose sum is σ = 32474112. Its totient is φ = 9994320.

The previous prime is 20810879. The next prime is 20810887. The reversal of 20810882 is 28801802.

It is not an unprimeable number, because it can be changed into a prime (20810887) 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, 3263 + ... + 7229.

It is an arithmetic number, because the mean of its divisors is an integer number (2029632).

Almost surely, 2^20810882 is an apocalyptic number.

20810882 is a deficient number, since it is larger than the sum of its proper divisors (11663230).

20810882 is a wasteful number, since it uses less digits than its factorization.

20810882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4073.

The product of its (nonzero) digits is 2048, while the sum is 29.

The square root of 20810882 is about 4561.8945625694. The cubic root of 20810882 is about 275.0617249875.

The spelling of 20810882 in words is "twenty million, eight hundred ten thousand, eight hundred eighty-two".