388122768 has 120 divisors (see below), whose sum is σ = 1205324640. Its totient is φ = 115591680.

The previous prime is 388122751. The next prime is 388122793. The reversal of 388122768 is 867221883.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 91380 + ... + 95532.

It is an arithmetic number, because the mean of its divisors is an integer number (10044372).

Almost surely, 2^388122768 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 388122768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (602662320).

388122768 is an abundant number, since it is smaller than the sum of its proper divisors (817201872).

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

388122768 is a wasteful number, since it uses less digits than its factorization.

388122768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4237 (or 4228 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 388122768 is about 19700.8316575722. The cubic root of 388122768 is about 729.4402213888.

The spelling of 388122768 in words is "three hundred eighty-eight million, one hundred twenty-two thousand, seven hundred sixty-eight".