388004 has 6 divisors (see below), whose sum is σ = 679014. Its totient is φ = 194000.

The previous prime is 387977. The next prime is 388009. The reversal of 388004 is 400883.

388004 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 362404 + 25600 = 602^2 + 160^2 .

It is not an unprimeable number, because it can be changed into a prime (388009) by changing a digit.

388004 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48497 + ... + 48504.

It is an arithmetic number, because the mean of its divisors is an integer number (113169).

2³⁸⁸⁰⁰⁴ is an apocalyptic number.

It is an amenable number.

388004 is a deficient number, since it is larger than the sum of its proper divisors (291010).

388004 is a wasteful number, since it uses less digits than its factorization.

388004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97005 (or 97003 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 388004 is about 622.8996708941. The cubic root of 388004 is about 72.9365809371.

Adding to 388004 its reverse (400883), we get a palindrome (788887).

The spelling of 388004 in words is "three hundred eighty-eight thousand, four".