2268811916 has 96 divisors (see below), whose sum is σ = 4839004800. Its totient is φ = 929510400.

The previous prime is 2268811913. The next prime is 2268811949. The reversal of 2268811916 is 6191188622.

Its product of digits (82944) is a multiple of the sum of its prime divisors (864).

It is not an unprimeable number, because it can be changed into a prime (2268811913) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2980976 + ... + 2981736.

It is an arithmetic number, because the mean of its divisors is an integer number (50406300).

Almost surely, 2^2268811916 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 2268811916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2419502400).

2268811916 is an abundant number, since it is smaller than the sum of its proper divisors (2570192884).

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

2268811916 is a wasteful number, since it uses less digits than its factorization.

2268811916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880 (or 864 counting only the distinct ones).

The product of its digits is 82944, while the sum is 44.

The square root of 2268811916 is about 47632.0471531510. The cubic root of 2268811916 is about 1314.0125046399.

The spelling of 2268811916 in words is "two billion, two hundred sixty-eight million, eight hundred eleven thousand, nine hundred sixteen".