20042404444420 has 48 divisors (see below), whose sum is σ = 43657835316480. Its totient is φ = 7723253373696.

The previous prime is 20042404444417. The next prime is 20042404444441. The reversal of 20042404444420 is 2444440424002.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159561340 + ... + 159686899.

It is an arithmetic number, because the mean of its divisors is an integer number (909538235760).

Almost surely, 2^{20042404444420} is an apocalyptic number.

20042404444420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20042404444420 is an abundant number, since it is smaller than the sum of its proper divisors (23615430872060).

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

20042404444420 is a wasteful number, since it uses less digits than its factorization.

20042404444420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319248364 (or 319248362 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 34.

Adding to 20042404444420 its reverse (2444440424002), we get a palindrome (22486844868422).

The spelling of 20042404444420 in words is "twenty trillion, forty-two billion, four hundred four million, four hundred forty-four thousand, four hundred twenty".