20820796 has 12 divisors (see below), whose sum is σ = 38020752. Its totient is φ = 9957728.

The previous prime is 20820781. The next prime is 20820797. The reversal of 20820796 is 69702802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20820797) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113065 + ... + 113248.

It is an arithmetic number, because the mean of its divisors is an integer number (3168396).

Almost surely, 2^20820796 is an apocalyptic number.

It is an amenable number.

20820796 is a deficient number, since it is larger than the sum of its proper divisors (17199956).

20820796 is a wasteful number, since it uses less digits than its factorization.

20820796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226340 (or 226338 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 20820796 is about 4562.9810431340. The cubic root of 20820796 is about 275.1053965152.

The spelling of 20820796 in words is "twenty million, eight hundred twenty thousand, seven hundred ninety-six".