20020422 has 16 divisors (see below), whose sum is σ = 40438512. Its totient is φ = 6607200.

The previous prime is 20020421. The next prime is 20020439. The reversal of 20020422 is 22402002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20020398 and 20020407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020421) 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, 15913 + ... + 17124.

It is an arithmetic number, because the mean of its divisors is an integer number (2527407).

Almost surely, 2^20020422 is an apocalyptic number.

20020422 is an abundant number, since it is smaller than the sum of its proper divisors (20418090).

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

20020422 is a wasteful number, since it uses less digits than its factorization.

20020422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33143.

The product of its (nonzero) digits is 64, while the sum is 12.

The square root of 20020422 is about 4474.4186214524. The cubic root of 20020422 is about 271.5341199585.

Adding to 20020422 its reverse (22402002), we get a palindrome (42422424).

The spelling of 20020422 in words is "twenty million, twenty thousand, four hundred twenty-two".