1338394271 has 2 divisors, whose sum is σ = 1338394272. Its totient is φ = 1338394270.

The previous prime is 1338394249. The next prime is 1338394297. The reversal of 1338394271 is 1724938331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1338394271 - 2¹⁰ = 1338393247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1338394571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 669197135 + 669197136.

It is an arithmetic number, because the mean of its divisors is an integer number (669197136).

Almost surely, 2^1338394271 is an apocalyptic number.

1338394271 is a deficient number, since it is larger than the sum of its proper divisors (1).

1338394271 is an equidigital number, since it uses as much as digits as its factorization.

1338394271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 41.

The square root of 1338394271 is about 36584.0712742581. The cubic root of 1338394271 is about 1102.0332287415.

The spelling of 1338394271 in words is "one billion, three hundred thirty-eight million, three hundred ninety-four thousand, two hundred seventy-one".