2108840544 has 144 divisors (see below), whose sum is σ = 6123669552. Its totient is φ = 688241664.

The previous prime is 2108840521. The next prime is 2108840551. The reversal of 2108840544 is 4450488012.

2108840544 is a `hidden beast` number, since 2 + 108 + 8 + 4 + 0 + 544 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2108840499 and 2108840508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5653542 + ... + 5653914.

It is an arithmetic number, because the mean of its divisors is an integer number (42525483).

Almost surely, 2^2108840544 is an apocalyptic number.

2108840544 is a gapful number since it is divisible by the number (24) 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 2108840544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3061834776).

2108840544 is an abundant number, since it is smaller than the sum of its proper divisors (4014829008).

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

2108840544 is a wasteful number, since it uses less digits than its factorization.

2108840544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749 (or 738 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 36.

The square root of 2108840544 is about 45922.1138886267. The cubic root of 2108840544 is about 1282.3736359659.

The spelling of 2108840544 in words is "two billion, one hundred eight million, eight hundred forty thousand, five hundred forty-four".