1338410837 has 2 divisors, whose sum is σ = 1338410838. Its totient is φ = 1338410836.

The previous prime is 1338410809. The next prime is 1338410839. The reversal of 1338410837 is 7380148331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 822485041 + 515925796 = 28679^2 + 22714^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1338410837 is a prime.

Together with 1338410839, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1338410837.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1338410839) 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 as a sum of consecutive naturals, namely, 669205418 + 669205419.

It is an arithmetic number, because the mean of its divisors is an integer number (669205419).

Almost surely, 2^1338410837 is an apocalyptic number.

It is an amenable number.

1338410837 is a deficient number, since it is larger than the sum of its proper divisors (1).

1338410837 is an equidigital number, since it uses as much as digits as its factorization.

1338410837 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 1338410837 is about 36584.2976835691. The cubic root of 1338410837 is about 1102.0377755350.

The spelling of 1338410837 in words is "one billion, three hundred thirty-eight million, four hundred ten thousand, eight hundred thirty-seven".