3989180 has 48 divisors (see below), whose sum is σ = 9196320. Its totient is φ = 1444608.

The previous prime is 3989171. The next prime is 3989191. The reversal of 3989180 is 819893.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17306 + ... + 17534.

It is an arithmetic number, because the mean of its divisors is an integer number (191590).

Almost surely, 2^3989180 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 3989180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4598160).

3989180 is an abundant number, since it is smaller than the sum of its proper divisors (5207140).

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

3989180 is a wasteful number, since it uses less digits than its factorization.

3989180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318 (or 316 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 3989180 is about 1997.2931682655. The cubic root of 3989180 is about 158.5968452849.

The spelling of 3989180 in words is "three million, nine hundred eighty-nine thousand, one hundred eighty".