388217568 has 48 divisors (see below), whose sum is σ = 1022426496. Its totient is φ = 128979840.

The previous prime is 388217539. The next prime is 388217569. The reversal of 388217568 is 865712883.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388217569) 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, 23355 + ... + 36357.

It is an arithmetic number, because the mean of its divisors is an integer number (21300552).

Almost surely, 2^388217568 is an apocalyptic number.

It is an amenable number.

388217568 is an abundant number, since it is smaller than the sum of its proper divisors (634208928).

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

388217568 is a wasteful number, since it uses less digits than its factorization.

388217568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13327 (or 13319 counting only the distinct ones).

The product of its digits is 645120, while the sum is 48.

The square root of 388217568 is about 19703.2375004718. The cubic root of 388217568 is about 729.4996057807.

The spelling of 388217568 in words is "three hundred eighty-eight million, two hundred seventeen thousand, five hundred sixty-eight".