2189831068 has 24 divisors (see below), whose sum is σ = 3870542592. Its totient is φ = 1083984384.

The previous prime is 2189831057. The next prime is 2189831069. The reversal of 2189831068 is 8601389812.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2189831069) 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 7 ways as a sum of consecutive naturals, for example, 489096 + ... + 493552.

It is an arithmetic number, because the mean of its divisors is an integer number (161272608).

Almost surely, 2^2189831068 is an apocalyptic number.

It is an amenable number.

2189831068 is a deficient number, since it is larger than the sum of its proper divisors (1680711524).

2189831068 is a wasteful number, since it uses less digits than its factorization.

2189831068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5661 (or 5659 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 46.

The square root of 2189831068 is about 46795.6308644301. The cubic root of 2189831068 is about 1298.5844686970.

The spelling of 2189831068 in words is "two billion, one hundred eighty-nine million, eight hundred thirty-one thousand, sixty-eight".