20042000424020 has 48 divisors (see below), whose sum is σ = 44303784147840. Its totient is φ = 7594792212096.

The previous prime is 20042000424011. The next prime is 20042000424049. The reversal of 20042000424020 is 2042400024002.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 20042000423983 and 20042000424001.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59207369 + ... + 59544911.

It is an arithmetic number, because the mean of its divisors is an integer number (922995503080).

Almost surely, 2^{20042000424020} is an apocalyptic number.

20042000424020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20042000424020 is an abundant number, since it is smaller than the sum of its proper divisors (24261783723820).

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

20042000424020 is a wasteful number, since it uses less digits than its factorization.

20042000424020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493824 (or 493822 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 20042000424020 its reverse (2042400024002), we get a palindrome (22084400448022).

The spelling of 20042000424020 in words is "twenty trillion, forty-two billion, four hundred twenty-four thousand, twenty".