389547180 has 288 divisors, whose sum is σ = 1392588288. Its totient is φ = 87091200.

The previous prime is 389547173. The next prime is 389547241. The reversal of 389547180 is 81745983.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2389779 + ... + 2389941.

It is an arithmetic number, because the mean of its divisors is an integer number (4835376).

Almost surely, 2^389547180 is an apocalyptic number.

389547180 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 389547180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (696294144).

389547180 is an abundant number, since it is smaller than the sum of its proper divisors (1003041108).

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

389547180 is a wasteful number, since it uses less digits than its factorization.

389547180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277 (or 272 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 389547180 is about 19736.9496123388. The cubic root of 389547180 is about 730.3314814077.

The spelling of 389547180 in words is "three hundred eighty-nine million, five hundred forty-seven thousand, one hundred eighty".