489582644 has 12 divisors (see below), whose sum is σ = 874999104. Its totient is φ = 239582904.

The previous prime is 489582641. The next prime is 489582661. The reversal of 489582644 is 446285984.

It is a junction number, because it is equal to n+sod(n) for n = 489582592 and 489582601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489582641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1301894 + ... + 1302269.

It is an arithmetic number, because the mean of its divisors is an integer number (72916592).

Almost surely, 2^489582644 is an apocalyptic number.

It is an amenable number.

489582644 is a deficient number, since it is larger than the sum of its proper divisors (385416460).

489582644 is a wasteful number, since it uses less digits than its factorization.

489582644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2604214 (or 2604212 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 50.

The square root of 489582644 is about 22126.5145018369. The cubic root of 489582644 is about 788.1496211548.

The spelling of 489582644 in words is "four hundred eighty-nine million, five hundred eighty-two thousand, six hundred forty-four".