389331852 has 216 divisors, whose sum is σ = 1198129968. Its totient is φ = 97493760.

The previous prime is 389331827. The next prime is 389331889. The reversal of 389331852 is 258133983.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 7345858 + ... + 7345910.

It is an arithmetic number, because the mean of its divisors is an integer number (5546898).

Almost surely, 2^389331852 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 389331852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (599064984).

389331852 is an abundant number, since it is smaller than the sum of its proper divisors (808798116).

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

389331852 is a wasteful number, since it uses less digits than its factorization.

389331852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149 (or 109 counting only the distinct ones).

The product of its digits is 155520, while the sum is 42.

The square root of 389331852 is about 19731.4939120179. The cubic root of 389331852 is about 730.1968894077.

The spelling of 389331852 in words is "three hundred eighty-nine million, three hundred thirty-one thousand, eight hundred fifty-two".