388398 has 16 divisors (see below), whose sum is σ = 817920. Its totient is φ = 122616.

The previous prime is 388391. The next prime is 388403. The reversal of 388398 is 893883.

It is a happy number.

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1590 + ... + 1817.

It is an arithmetic number, because the mean of its divisors is an integer number (51120).

2³⁸⁸³⁹⁸ is an apocalyptic number.

388398 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

388398 is an abundant number, since it is smaller than the sum of its proper divisors (429522).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

388398 is a wasteful number, since it uses less digits than its factorization.

388398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3431.

The product of its digits is 41472, while the sum is 39.

The square root of 388398 is about 623.2158534569. The cubic root of 388398 is about 72.9612604863.

The spelling of 388398 in words is "three hundred eighty-eight thousand, three hundred ninety-eight".