388548880 has 80 divisors (see below), whose sum is σ = 919941120. Its totient is φ = 152603136.

The previous prime is 388548871. The next prime is 388548907. The reversal of 388548880 is 88845883.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1696606 + ... + 1696834.

It is an arithmetic number, because the mean of its divisors is an integer number (11499264).

Almost surely, 2^388548880 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 388548880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (459970560).

388548880 is an abundant number, since it is smaller than the sum of its proper divisors (531392240).

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

388548880 is a wasteful number, since it uses less digits than its factorization.

388548880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536 (or 530 counting only the distinct ones).

The product of its (nonzero) digits is 1966080, while the sum is 52.

The square root of 388548880 is about 19711.6432597589. The cubic root of 388548880 is about 729.7070695597.

The spelling of 388548880 in words is "three hundred eighty-eight million, five hundred forty-eight thousand, eight hundred eighty".