20104089908 has 48 divisors (see below), whose sum is σ = 42666986880. Its totient is φ = 8091380736.

The previous prime is 20104089827. The next prime is 20104089911. The reversal of 20104089908 is 80998040102.

It is a congruent number.

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, 171323 + ... + 263741.

It is an arithmetic number, because the mean of its divisors is an integer number (888895560).

Almost surely, 2^20104089908 is an apocalyptic number.

20104089908 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20104089908, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21333493440).

20104089908 is an abundant number, since it is smaller than the sum of its proper divisors (22562896972).

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

20104089908 is a wasteful number, since it uses less digits than its factorization.

20104089908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92904 (or 92902 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 41.

The spelling of 20104089908 in words is "twenty billion, one hundred four million, eighty-nine thousand, nine hundred eight".