388078 has 8 divisors (see below), whose sum is σ = 602280. Its totient is φ = 187320.

The previous prime is 388067. The next prime is 388081. The reversal of 388078 is 870883.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

388078 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3288 + ... + 3403.

It is an arithmetic number, because the mean of its divisors is an integer number (75285).

2³⁸⁸⁰⁷⁸ is an apocalyptic number.

388078 is a deficient number, since it is larger than the sum of its proper divisors (214202).

388078 is a wasteful number, since it uses less digits than its factorization.

388078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6722.

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 388078 is about 622.9590676762. The cubic root of 388078 is about 72.9412174563.

The spelling of 388078 in words is "three hundred eighty-eight thousand, seventy-eight".