489819331 has 4 divisors (see below), whose sum is σ = 489964000. Its totient is φ = 489674664.

The previous prime is 489819329. The next prime is 489819347. The reversal of 489819331 is 133918984.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 489819331 - 2¹ = 489819329 is a prime.

It is a super-2 number, since 2×489819331² = 479845954042575122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (489819361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67131 + ... + 74068.

It is an arithmetic number, because the mean of its divisors is an integer number (122491000).

Almost surely, 2^489819331 is an apocalyptic number.

489819331 is a deficient number, since it is larger than the sum of its proper divisors (144669).

489819331 is a wasteful number, since it uses less digits than its factorization.

489819331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144668.

The product of its digits is 186624, while the sum is 46.

The square root of 489819331 is about 22131.8623482074. The cubic root of 489819331 is about 788.2766100764.

The spelling of 489819331 in words is "four hundred eighty-nine million, eight hundred nineteen thousand, three hundred thirty-one".