2144421368 has 8 divisors (see below), whose sum is σ = 4020790080. Its totient is φ = 1072210680.

The previous prime is 2144421341. The next prime is 2144421379. The reversal of 2144421368 is 8631244412.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134026328 + ... + 134026343.

It is an arithmetic number, because the mean of its divisors is an integer number (502598760).

Almost surely, 2^2144421368 is an apocalyptic number.

It is an amenable number.

2144421368 is a deficient number, since it is larger than the sum of its proper divisors (1876368712).

2144421368 is a wasteful number, since it uses less digits than its factorization.

2144421368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268052677 (or 268052673 counting only the distinct ones).

The product of its digits is 36864, while the sum is 35.

The square root of 2144421368 is about 46307.8974690063. The cubic root of 2144421368 is about 1289.5456140593.

The spelling of 2144421368 in words is "two billion, one hundred forty-four million, four hundred twenty-one thousand, three hundred sixty-eight".