2104081920 has 400 divisors, whose sum is σ = 7694351280. Its totient is φ = 549421056.

The previous prime is 2104081913. The next prime is 2104081937. The reversal of 2104081920 is 291804012.

2104081920 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 15137211 + ... + 15137349.

Almost surely, 2^2104081920 is an apocalyptic number.

2104081920 is a gapful number since it is divisible by the number (20) 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 2104081920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3847175640).

2104081920 is an abundant number, since it is smaller than the sum of its proper divisors (5590269360).

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

2104081920 is an equidigital number, since it uses as much as digits as its factorization.

2104081920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247 (or 222 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 2104081920 is about 45870.2727264620. The cubic root of 2104081920 is about 1281.4083457044.

Adding to 2104081920 its reverse (291804012), we get a palindrome (2395885932).

The spelling of 2104081920 in words is "two billion, one hundred four million, eighty-one thousand, nine hundred twenty".