489842 has 8 divisors (see below), whose sum is σ = 738396. Its totient is φ = 243712.

The previous prime is 489833. The next prime is 489847. The reversal of 489842 is 248984.

It can be written as a sum of positive squares in 2 ways, for example, as 450241 + 39601 = 671^2 + 199^2 .

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

It is not an unprimeable number, because it can be changed into a prime (489847) by changing a digit.

489842 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 3 ways as a sum of consecutive naturals, for example, 38 + ... + 990.

2⁴⁸⁹⁸⁴² is an apocalyptic number.

489842 is a deficient number, since it is larger than the sum of its proper divisors (248554).

489842 is a wasteful number, since it uses less digits than its factorization.

489842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212.

The product of its digits is 18432, while the sum is 35.

The square root of 489842 is about 699.8871337580. The cubic root of 489842 is about 78.8288770456.

It can be divided in two parts, 489 and 842, that added together give a palindrome (1331).

The spelling of 489842 in words is "four hundred eighty-nine thousand, eight hundred forty-two".