388491288480 has 768 divisors, whose sum is σ = 1488940185600. Its totient is φ = 94267514880.

The previous prime is 388491288443. The next prime is 388491288491. The reversal of 388491288480 is 84882194883.

388491288480 is a `hidden beast` number, since 3 + 88 + 491 + 28 + 8 + 48 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 225472899 + ... + 225474621.

It is an arithmetic number, because the mean of its divisors is an integer number (1938724200).

Almost surely, 2^388491288480 is an apocalyptic number.

388491288480 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 388491288480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (744470092800).

388491288480 is an abundant number, since it is smaller than the sum of its proper divisors (1100448897120).

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

388491288480 is a wasteful number, since it uses less digits than its factorization.

388491288480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1874 (or 1860 counting only the distinct ones).

The product of its (nonzero) digits is 28311552, while the sum is 63.

The spelling of 388491288480 in words is "three hundred eighty-eight billion, four hundred ninety-one million, two hundred eighty-eight thousand, four hundred eighty".