389180688 has 80 divisors (see below), whose sum is σ = 1086138816. Its totient is φ = 119370240.

The previous prime is 389180683. The next prime is 389180731. The reversal of 389180688 is 886081983.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 389180688.

It is not an unprimeable number, because it can be changed into a prime (389180681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 246943 + ... + 248513.

Almost surely, 2^389180688 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 389180688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (543069408).

389180688 is an abundant number, since it is smaller than the sum of its proper divisors (696958128).

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

389180688 is a wasteful number, since it uses less digits than its factorization.

389180688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1992 (or 1986 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 51.

The square root of 389180688 is about 19727.6630141535. The cubic root of 389180688 is about 730.1023738330.

The spelling of 389180688 in words is "three hundred eighty-nine million, one hundred eighty thousand, six hundred eighty-eight".