2281891308 has 12 divisors (see below), whose sum is σ = 5324413080. Its totient is φ = 760630432.

The previous prime is 2281891301. The next prime is 2281891321. The reversal of 2281891308 is 8031981822.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 2281891308.

It is not an unprimeable number, because it can be changed into a prime (2281891301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95078793 + ... + 95078816.

It is an arithmetic number, because the mean of its divisors is an integer number (443701090).

Almost surely, 2^2281891308 is an apocalyptic number.

It is an amenable number.

2281891308 is an abundant number, since it is smaller than the sum of its proper divisors (3042521772).

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

2281891308 is a wasteful number, since it uses less digits than its factorization.

2281891308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190157616 (or 190157614 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 42.

The square root of 2281891308 is about 47769.1459835740. The cubic root of 2281891308 is about 1316.5327023951.

The spelling of 2281891308 in words is "two billion, two hundred eighty-one million, eight hundred ninety-one thousand, three hundred eight".