489181 has 8 divisors (see below), whose sum is σ = 609984. Its totient is φ = 381120.

The previous prime is 489179. The next prime is 489191. The reversal of 489181 is 181984.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 489181 - 2¹ = 489179 is a prime.

It is a super-2 number, since 2×489181² = 478596101522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3100 + ... + 3253.

It is an arithmetic number, because the mean of its divisors is an integer number (76248).

2⁴⁸⁹¹⁸¹ is an apocalyptic number.

It is an amenable number.

489181 is a deficient number, since it is larger than the sum of its proper divisors (120803).

489181 is a wasteful number, since it uses less digits than its factorization.

489181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6371.

The product of its digits is 2304, while the sum is 31.

The square root of 489181 is about 699.4147553491. The cubic root of 489181 is about 78.7934034692.

It can be divided in two parts, 48 and 9181, that added together give a palindrome (9229).

The spelling of 489181 in words is "four hundred eighty-nine thousand, one hundred eighty-one".