20022586 has 16 divisors (see below), whose sum is σ = 31501800. Its totient is φ = 9531648.

The previous prime is 20022577. The next prime is 20022593. The reversal of 20022586 is 68522002.

It can be written as a sum of positive squares in 4 ways, for example, as 12355225 + 7667361 = 3515^2 + 2769^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20022586.

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, 1870 + ... + 6598.

Almost surely, 2^20022586 is an apocalyptic number.

20022586 is a deficient number, since it is larger than the sum of its proper divisors (11479214).

20022586 is a wasteful number, since it uses less digits than its factorization.

20022586 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4833.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 20022586 is about 4474.6604340441. The cubic root of 20022586 is about 271.5439029469.

Adding to 20022586 its reverse (68522002), we get a palindrome (88544588).

The spelling of 20022586 in words is "twenty million, twenty-two thousand, five hundred eighty-six".