489184243 has 4 divisors (see below), whose sum is σ = 501115608. Its totient is φ = 477252880.

The previous prime is 489184237. The next prime is 489184259. The reversal of 489184243 is 342481984.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-489184243 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 489184243.

It is not an unprimeable number, because it can be changed into a prime (489184273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5965621 + ... + 5965702.

It is an arithmetic number, because the mean of its divisors is an integer number (125278902).

Almost surely, 2^489184243 is an apocalyptic number.

489184243 is a deficient number, since it is larger than the sum of its proper divisors (11931365).

489184243 is a wasteful number, since it uses less digits than its factorization.

489184243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11931364.

The product of its digits is 221184, while the sum is 43.

The square root of 489184243 is about 22117.5098734012. The cubic root of 489184243 is about 787.9357758775.

The spelling of 489184243 in words is "four hundred eighty-nine million, one hundred eighty-four thousand, two hundred forty-three".