2144407738 has 24 divisors (see below), whose sum is σ = 3542583744. Its totient is φ = 972809640.

The previous prime is 2144407723. The next prime is 2144407739. The reversal of 2144407738 is 8377044412.

It is a self number, because there is not a number n which added to its sum of digits gives 2144407738.

It is not an unprimeable number, because it can be changed into a prime (2144407739) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 118095 + ... + 135037.

It is an arithmetic number, because the mean of its divisors is an integer number (147607656).

Almost surely, 2^2144407738 is an apocalyptic number.

2144407738 is a deficient number, since it is larger than the sum of its proper divisors (1398176006).

2144407738 is a wasteful number, since it uses less digits than its factorization.

2144407738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17490 (or 17479 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 40.

The square root of 2144407738 is about 46307.7503016504. The cubic root of 2144407738 is about 1289.5428819246.

The spelling of 2144407738 in words is "two billion, one hundred forty-four million, four hundred seven thousand, seven hundred thirty-eight".