20322066 has 8 divisors (see below), whose sum is σ = 40644144. Its totient is φ = 6774020.

The previous prime is 20322061. The next prime is 20322073. The reversal of 20322066 is 66022302.

It is a sphenic number, since it is the product of 3 distinct primes.

20322066 is an admirable number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20322061) 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 3 ways as a sum of consecutive naturals, for example, 1693500 + ... + 1693511.

It is an arithmetic number, because the mean of its divisors is an integer number (5080518).

Almost surely, 2^20322066 is an apocalyptic number.

20322066 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20322066 is a wasteful number, since it uses less digits than its factorization.

20322066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3387016.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 20322066 is about 4508.0002218279. Note that the first 3 decimals coincide. The cubic root of 20322066 is about 272.8910458969.

Adding to 20322066 its reverse (66022302), we get a palindrome (86344368).

The spelling of 20322066 in words is "twenty million, three hundred twenty-two thousand, sixty-six".