388233888 has 96 divisors (see below), whose sum is σ = 1173481344. Its totient is φ = 110088192.

The previous prime is 388233877. The next prime is 388233899. The reversal of 388233888 is 888332883.

It is an interprime number because it is at equal distance from previous prime (388233877) and next prime (388233899).

It is a tau number, because it is divible by the number of its divisors (96).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 388233888.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89956 + ... + 94172.

It is an arithmetic number, because the mean of its divisors is an integer number (12223764).

Almost surely, 2^388233888 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 388233888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (586740672).

388233888 is an abundant number, since it is smaller than the sum of its proper divisors (785247456).

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

388233888 is a wasteful number, since it uses less digits than its factorization.

388233888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4374 (or 4366 counting only the distinct ones).

The product of its digits is 1769472, while the sum is 51.

The square root of 388233888 is about 19703.6516412568. The cubic root of 388233888 is about 729.5098279411.

The spelling of 388233888 in words is "three hundred eighty-eight million, two hundred thirty-three thousand, eight hundred eighty-eight".