389180 has 48 divisors (see below), whose sum is σ = 937440. Its totient is φ = 134400.

The previous prime is 389173. The next prime is 389189. The reversal of 389180 is 81983.

It is a happy number.

It is a super-2 number, since 2×389180² = 302922144800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389189) by changing a digit.

389180 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6350 + ... + 6410.

It is an arithmetic number, because the mean of its divisors is an integer number (19530).

2³⁸⁹¹⁸⁰ 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 389180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (468720).

389180 is an abundant number, since it is smaller than the sum of its proper divisors (548260).

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

389180 is a wasteful number, since it uses less digits than its factorization.

389180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110 (or 108 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 389180 is about 623.8429289493. The cubic root of 389180 is about 73.0101943604.

The spelling of 389180 in words is "three hundred eighty-nine thousand, one hundred eighty".