388408 has 16 divisors (see below), whose sum is σ = 744480. Its totient is φ = 189888.

The previous prime is 388403. The next prime is 388459. The reversal of 388408 is 804883.

It is a self number, because there is not a number n which added to its sum of digits gives 388408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388403) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 141 + ... + 892.

It is an arithmetic number, because the mean of its divisors is an integer number (46530).

2³⁸⁸⁴⁰⁸ is an apocalyptic number.

It is an amenable number.

388408 is a deficient number, since it is larger than the sum of its proper divisors (356072).

388408 is a wasteful number, since it uses less digits than its factorization.

388408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1086 (or 1082 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 388408 is about 623.2238763077. The cubic root of 388408 is about 72.9618866535.

The spelling of 388408 in words is "three hundred eighty-eight thousand, four hundred eight".