20104421340 has 96 divisors (see below), whose sum is σ = 61057571904. Its totient is φ = 4922736640.

The previous prime is 20104421339. The next prime is 20104421353. The reversal of 20104421340 is 4312440102.

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 31 ways as a sum of consecutive naturals, for example, 198549 + ... + 282188.

It is an arithmetic number, because the mean of its divisors is an integer number (636016374).

Almost surely, 2^20104421340 is an apocalyptic number.

20104421340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20104421340 is an abundant number, since it is smaller than the sum of its proper divisors (40953150564).

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

20104421340 is a wasteful number, since it uses less digits than its factorization.

20104421340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480807 (or 480805 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 20104421340 its reverse (4312440102), we get a palindrome (24416861442).

The spelling of 20104421340 in words is "twenty billion, one hundred four million, four hundred twenty-one thousand, three hundred forty".