388838 has 16 divisors (see below), whose sum is σ = 622080. Its totient is φ = 181896.

The previous prime is 388837. The next prime is 388859. The reversal of 388838 is 838883.

388838 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 388838.

It is not an unprimeable number, because it can be changed into a prime (388837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3581 + ... + 3687.

It is an arithmetic number, because the mean of its divisors is an integer number (38880).

2³⁸⁸⁸³⁸ is an apocalyptic number.

388838 is a deficient number, since it is larger than the sum of its proper divisors (233242).

388838 is a wasteful number, since it uses less digits than its factorization.

388838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211.

The product of its digits is 36864, while the sum is 38.

The square root of 388838 is about 623.5687612445. The cubic root of 388838 is about 72.9888016850.

The spelling of 388838 in words is "three hundred eighty-eight thousand, eight hundred thirty-eight".