2138448184 has 16 divisors (see below), whose sum is σ = 4183920720. Its totient is φ = 1022736000.

The previous prime is 2138448133. The next prime is 2138448209. The reversal of 2138448184 is 4818448312.

It is a self number, because there is not a number n which added to its sum of digits gives 2138448184.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5810817 + ... + 5811184.

It is an arithmetic number, because the mean of its divisors is an integer number (261495045).

Almost surely, 2^2138448184 is an apocalyptic number.

It is an amenable number.

2138448184 is a deficient number, since it is larger than the sum of its proper divisors (2045472536).

2138448184 is a wasteful number, since it uses less digits than its factorization.

2138448184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11622030 (or 11622026 counting only the distinct ones).

The product of its digits is 196608, while the sum is 43.

The square root of 2138448184 is about 46243.3582690531. The cubic root of 2138448184 is about 1288.3471779278.

The spelling of 2138448184 in words is "two billion, one hundred thirty-eight million, four hundred forty-eight thousand, one hundred eighty-four".