2108508400 has 120 divisors (see below), whose sum is σ = 5286022784. Its totient is φ = 807321600.

The previous prime is 2108508379. The next prime is 2108508403. The reversal of 2108508400 is 48058012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2108508403) 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 23 ways as a sum of consecutive naturals, for example, 1201924 + ... + 1203676.

Almost surely, 2^2108508400 is an apocalyptic number.

2108508400 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 2108508400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2643011392).

2108508400 is an abundant number, since it is smaller than the sum of its proper divisors (3177514384).

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

2108508400 is a wasteful number, since it uses less digits than its factorization.

2108508400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1899 (or 1888 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 2108508400 is about 45918.4973621742. The cubic root of 2108508400 is about 1282.3063074879.

The spelling of 2108508400 in words is "two billion, one hundred eight million, five hundred eight thousand, four hundred".