2188323708 has 96 divisors (see below), whose sum is σ = 5845190400. Its totient is φ = 632779776.

The previous prime is 2188323703. The next prime is 2188323743. The reversal of 2188323708 is 8073238812.

It is a self number, because there is not a number n which added to its sum of digits gives 2188323708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2188323703) 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 31 ways as a sum of consecutive naturals, for example, 135783 + ... + 151041.

It is an arithmetic number, because the mean of its divisors is an integer number (60887400).

Almost surely, 2^2188323708 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2188323708, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2922595200).

2188323708 is an abundant number, since it is smaller than the sum of its proper divisors (3656866692).

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

2188323708 is a wasteful number, since it uses less digits than its factorization.

2188323708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15339 (or 15337 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 2188323708 is about 46779.5223147907. The cubic root of 2188323708 is about 1298.2864421178.

The spelling of 2188323708 in words is "two billion, one hundred eighty-eight million, three hundred twenty-three thousand, seven hundred eight".