20104440042 has 8 divisors (see below), whose sum is σ = 40208880096. Its totient is φ = 6701480012.

The previous prime is 20104440029. The next prime is 20104440043. The reversal of 20104440042 is 24004440102.

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

20104440042 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (20104440043) by changing a digit.

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, 1675369998 + ... + 1675370009.

It is an arithmetic number, because the mean of its divisors is an integer number (5026110012).

Almost surely, 2^20104440042 is an apocalyptic number.

20104440042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20104440042 is a wasteful number, since it uses less digits than its factorization.

20104440042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3350740012.

The product of its (nonzero) digits is 1024, while the sum is 21.

Adding to 20104440042 its reverse (24004440102), we get a palindrome (44108880144).

The spelling of 20104440042 in words is "twenty billion, one hundred four million, four hundred forty thousand, forty-two".