388889088 has 120 divisors (see below), whose sum is σ = 1205404992. Its totient is φ = 111089664.

The previous prime is 388889071. The next prime is 388889147. The reversal of 388889088 is 880988883.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72681 + ... + 77847.

Almost surely, 2^388889088 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 388889088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (602702496).

388889088 is an abundant number, since it is smaller than the sum of its proper divisors (816515904).

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

388889088 is an equidigital number, since it uses as much as digits as its factorization.

388889088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5202 (or 5179 counting only the distinct ones).

The product of its (nonzero) digits is 7077888, while the sum is 60.

The square root of 388889088 is about 19720.2709920528. The cubic root of 388889088 is about 729.9199812209.

The spelling of 388889088 in words is "three hundred eighty-eight million, eight hundred eighty-nine thousand, eighty-eight".