388284 has 48 divisors (see below), whose sum is σ = 1034880. Its totient is φ = 112320.

The previous prime is 388277. The next prime is 388301. The reversal of 388284 is 482883.

It is a congruent number.

It is an unprimeable number.

388284 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 15 ways as a sum of consecutive naturals, for example, 2899 + ... + 3029.

It is an arithmetic number, because the mean of its divisors is an integer number (21560).

2³⁸⁸²⁸⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 388284, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (517440).

388284 is an abundant number, since it is smaller than the sum of its proper divisors (646596).

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

388284 is a wasteful number, since it uses less digits than its factorization.

388284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170 (or 168 counting only the distinct ones).

The product of its digits is 12288, while the sum is 33.

The square root of 388284 is about 623.1243856567. The cubic root of 388284 is about 72.9541214196.

The spelling of 388284 in words is "three hundred eighty-eight thousand, two hundred eighty-four".