1388238067 has 2 divisors, whose sum is σ = 1388238068. Its totient is φ = 1388238066.

The previous prime is 1388238043. The next prime is 1388238077. The reversal of 1388238067 is 7608328831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1388238067 - 2¹¹ = 1388236019 is a prime.

It is not a weakly prime, because it can be changed into another prime (1388238077) 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, 694119033 + 694119034.

It is an arithmetic number, because the mean of its divisors is an integer number (694119034).

Almost surely, 2^1388238067 is an apocalyptic number.

1388238067 is a deficient number, since it is larger than the sum of its proper divisors (1).

1388238067 is an equidigital number, since it uses as much as digits as its factorization.

1388238067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 387072, while the sum is 46.

The square root of 1388238067 is about 37259.0669099482. The cubic root of 1388238067 is about 1115.5472835955.

The spelling of 1388238067 in words is "one billion, three hundred eighty-eight million, two hundred thirty-eight thousand, sixty-seven".