1338935069 has 2 divisors, whose sum is σ = 1338935070. Its totient is φ = 1338935068.

The previous prime is 1338935063. The next prime is 1338935089. The reversal of 1338935069 is 9605398331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1255851844 + 83083225 = 35438^2 + 9115^2 .

It is a cyclic number.

It is not a de Polignac number, because 1338935069 - 2¹⁶ = 1338869533 is a prime.

It is a super-2 number, since 2×1338935069² = 3585494237996069522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1338935063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 669467534 + 669467535.

It is an arithmetic number, because the mean of its divisors is an integer number (669467535).

Almost surely, 2^1338935069 is an apocalyptic number.

It is an amenable number.

1338935069 is a deficient number, since it is larger than the sum of its proper divisors (1).

1338935069 is an equidigital number, since it uses as much as digits as its factorization.

1338935069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 524880, while the sum is 47.

The square root of 1338935069 is about 36591.4616953190. The cubic root of 1338935069 is about 1102.1816396957.

The spelling of 1338935069 in words is "one billion, three hundred thirty-eight million, nine hundred thirty-five thousand, sixty-nine".