4138642337 has 2 divisors, whose sum is σ = 4138642338. Its totient is φ = 4138642336.

The previous prime is 4138642331. The next prime is 4138642349. The reversal of 4138642337 is 7332468314.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2914272256 + 1224370081 = 53984^2 + 34991^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4138642337 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4138642294 and 4138642303.

It is not a weakly prime, because it can be changed into another prime (4138642331) by changing a digit.

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, 2069321168 + 2069321169.

It is an arithmetic number, because the mean of its divisors is an integer number (2069321169).

Almost surely, 2^4138642337 is an apocalyptic number.

It is an amenable number.

4138642337 is a deficient number, since it is larger than the sum of its proper divisors (1).

4138642337 is an equidigital number, since it uses as much as digits as its factorization.

4138642337 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304, while the sum is 41.

The square root of 4138642337 is about 64332.2806761893. The cubic root of 4138642337 is about 1605.5332301742.

The spelling of 4138642337 in words is "four billion, one hundred thirty-eight million, six hundred forty-two thousand, three hundred thirty-seven".