389510120 has 64 divisors (see below), whose sum is σ = 933120000. Its totient is φ = 145822720.

The previous prime is 389510081. The next prime is 389510123. The reversal of 389510120 is 21015983.

It is not an unprimeable number, because it can be changed into a prime (389510123) 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, 128381 + ... + 131379.

It is an arithmetic number, because the mean of its divisors is an integer number (14580000).

Almost surely, 2^389510120 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 389510120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (466560000).

389510120 is an abundant number, since it is smaller than the sum of its proper divisors (543609880).

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

389510120 is a wasteful number, since it uses less digits than its factorization.

389510120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3218 (or 3214 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 389510120 is about 19736.0107417887. The cubic root of 389510120 is about 730.3083203766.

The spelling of 389510120 in words is "three hundred eighty-nine million, five hundred ten thousand, one hundred twenty".