1338350399 has 2 divisors, whose sum is σ = 1338350400. Its totient is φ = 1338350398.

The previous prime is 1338350389. The next prime is 1338350407. The reversal of 1338350399 is 9930538331.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1338350399 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1338350389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 669175199 + 669175200.

It is an arithmetic number, because the mean of its divisors is an integer number (669175200).

Almost surely, 2^1338350399 is an apocalyptic number.

1338350399 is a deficient number, since it is larger than the sum of its proper divisors (1).

1338350399 is an equidigital number, since it uses as much as digits as its factorization.

1338350399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 262440, while the sum is 44.

The square root of 1338350399 is about 36583.4716641272. The cubic root of 1338350399 is about 1102.0211872150.

The spelling of 1338350399 in words is "one billion, three hundred thirty-eight million, three hundred fifty thousand, three hundred ninety-nine".