20830282 has 16 divisors (see below), whose sum is σ = 34165152. Its totient is φ = 9446320.

The previous prime is 20830267. The next prime is 20830291. The reversal of 20830282 is 28203802.

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 7 ways as a sum of consecutive naturals, for example, 12108 + ... + 13720.

It is an arithmetic number, because the mean of its divisors is an integer number (2135322).

Almost surely, 2^20830282 is an apocalyptic number.

20830282 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20830282 is a deficient number, since it is larger than the sum of its proper divisors (13334870).

20830282 is a wasteful number, since it uses less digits than its factorization.

20830282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2213.

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 20830282 is about 4564.0203768169. The cubic root of 20830282 is about 275.1471697111.

It can be divided in two parts, 20830 and 282, that added together give a palindrome (21112).

The spelling of 20830282 in words is "twenty million, eight hundred thirty thousand, two hundred eighty-two".