388438103 has 2 divisors, whose sum is σ = 388438104. Its totient is φ = 388438102.

The previous prime is 388438081. The next prime is 388438133. The reversal of 388438103 is 301834883.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 388438103 - 2¹⁰ = 388437079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (388438133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194219051 + 194219052.

It is an arithmetic number, because the mean of its divisors is an integer number (194219052).

Almost surely, 2^388438103 is an apocalyptic number.

388438103 is a deficient number, since it is larger than the sum of its proper divisors (1).

388438103 is an equidigital number, since it uses as much as digits as its factorization.

388438103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 388438103 is about 19708.8331212175. The cubic root of 388438103 is about 729.6377153999.

The spelling of 388438103 in words is "three hundred eighty-eight million, four hundred thirty-eight thousand, one hundred three".