2144205738 has 24 divisors (see below), whose sum is σ = 4676551776. Its totient is φ = 710001000.

The previous prime is 2144205731. The next prime is 2144205743. The reversal of 2144205738 is 8375024412.

It is a happy number.

2144205738 is a `hidden beast` number, since 21 + 44 + 20 + 573 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (2144205731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 391728 + ... + 397163.

It is an arithmetic number, because the mean of its divisors is an integer number (194856324).

Almost surely, 2^2144205738 is an apocalyptic number.

2144205738 is an abundant number, since it is smaller than the sum of its proper divisors (2532346038).

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

2144205738 is a wasteful number, since it uses less digits than its factorization.

2144205738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789050 (or 789047 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 2144205738 is about 46305.5691898933. The cubic root of 2144205738 is about 1289.5023896499.

The spelling of 2144205738 in words is "two billion, one hundred forty-four million, two hundred five thousand, seven hundred thirty-eight".