20020404244242 has 16 divisors (see below), whose sum is σ = 40041232322112. Its totient is φ = 6673397442480.

The previous prime is 20020404244229. The next prime is 20020404244259. The reversal of 20020404244242 is 24244240402002.

It is a happy number.

It is a super-2 number, since 2×20020404244242² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17044009 + ... + 18180732.

It is an arithmetic number, because the mean of its divisors is an integer number (2502577020132).

Almost surely, 2^{20020404244242} is an apocalyptic number.

20020404244242 is an abundant number, since it is smaller than the sum of its proper divisors (20020828077870).

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

20020404244242 is a wasteful number, since it uses less digits than its factorization.

20020404244242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35319473.

The product of its (nonzero) digits is 32768, while the sum is 30.

Adding to 20020404244242 its reverse (24244240402002), we get a palindrome (44264644646244).

The spelling of 20020404244242 in words is "twenty trillion, twenty billion, four hundred four million, two hundred forty-four thousand, two hundred forty-two".