388888 has 8 divisors (see below), whose sum is σ = 729180. Its totient is φ = 194440.

The previous prime is 388879. The next prime is 388891. The reversal of 388888 is 888883.

It is a happy number.

388888 is nontrivially palindromic in base 14.

388888 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

388888 is an undulating number in base 14.

It is a plaindrome in base 10.

It is a congruent number.

It is an unprimeable number.

388888 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, 24298 + ... + 24313.

2³⁸⁸⁸⁸⁸ is an apocalyptic number.

It is an amenable number.

388888 is a deficient number, since it is larger than the sum of its proper divisors (340292).

388888 is a wasteful number, since it uses less digits than its factorization.

388888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48617 (or 48613 counting only the distinct ones).

The product of its digits is 98304, while the sum is 43.

The square root of 388888 is about 623.6088517653. The cubic root of 388888 is about 72.9919300518.

The spelling of 388888 in words is "three hundred eighty-eight thousand, eight hundred eighty-eight".