388789332 has 48 divisors (see below), whose sum is σ = 948659712. Its totient is φ = 123694560.

The previous prime is 388789319. The next prime is 388789333. The reversal of 388789332 is 233987883.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388789333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156363 + ... + 158829.

It is an arithmetic number, because the mean of its divisors is an integer number (19763744).

Almost surely, 2^388789332 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 388789332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (474329856).

388789332 is an abundant number, since it is smaller than the sum of its proper divisors (559870380).

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

388789332 is a wasteful number, since it uses less digits than its factorization.

388789332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3068 (or 3066 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 51.

The square root of 388789332 is about 19717.7415542450. The cubic root of 388789332 is about 729.8575640033.

The spelling of 388789332 in words is "three hundred eighty-eight million, seven hundred eighty-nine thousand, three hundred thirty-two".