20456282 has 16 divisors (see below), whose sum is σ = 38256192. Its totient is φ = 7969920.

The previous prime is 20456257. The next prime is 20456309. The reversal of 20456282 is 28265402.

It is an unprimeable number.

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, 66263 + ... + 66570.

It is an arithmetic number, because the mean of its divisors is an integer number (2391012).

Almost surely, 2^20456282 is an apocalyptic number.

20456282 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20456282 is a deficient number, since it is larger than the sum of its proper divisors (17799910).

20456282 is a wasteful number, since it uses less digits than its factorization.

20456282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132853.

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 20456282 is about 4522.8621469154. The cubic root of 20456282 is about 273.4904929368.

The spelling of 20456282 in words is "twenty million, four hundred fifty-six thousand, two hundred eighty-two".