20286822 has 16 divisors (see below), whose sum is σ = 40617792. Its totient is φ = 6754920.

The previous prime is 20286811. The next prime is 20286829. The reversal of 20286822 is 22868202.

It is a self number, because there is not a number n which added to its sum of digits gives 20286822.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20286829) by changing a digit.

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, 9933 + ... + 11799.

It is an arithmetic number, because the mean of its divisors is an integer number (2538612).

Almost surely, 2^20286822 is an apocalyptic number.

20286822 is an abundant number, since it is smaller than the sum of its proper divisors (20330970).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20286822 is a wasteful number, since it uses less digits than its factorization.

20286822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3683.

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 20286822 is about 4504.0894751326. The cubic root of 20286822 is about 272.7331988005.

The spelling of 20286822 in words is "twenty million, two hundred eighty-six thousand, eight hundred twenty-two".