20084020042 has 8 divisors (see below), whose sum is σ = 30129709536. Its totient is φ = 10040783532.

The previous prime is 20084020039. The next prime is 20084020081. The reversal of 20084020042 is 24002048002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×20084020042² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20084019995 and 20084020022.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 592638 + ... + 625609.

It is an arithmetic number, because the mean of its divisors is an integer number (3766213692).

Almost surely, 2^20084020042 is an apocalyptic number.

20084020042 is a deficient number, since it is larger than the sum of its proper divisors (10045689494).

20084020042 is a wasteful number, since it uses less digits than its factorization.

20084020042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1226492.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 20084020042 its reverse (24002048002), we get a palindrome (44086068044).

The spelling of 20084020042 in words is "twenty billion, eighty-four million, twenty thousand, forty-two".