489631946 has 8 divisors (see below), whose sum is σ = 738551520. Its totient is φ = 243448108.

The previous prime is 489631939. The next prime is 489631979. The reversal of 489631946 is 649136984.

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

It is a junction number, because it is equal to n+sod(n) for n = 489631894 and 489631903.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 683486 + ... + 684201.

It is an arithmetic number, because the mean of its divisors is an integer number (92318940).

Almost surely, 2^489631946 is an apocalyptic number.

489631946 is a deficient number, since it is larger than the sum of its proper divisors (248919574).

489631946 is a wasteful number, since it uses less digits than its factorization.

489631946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1367868.

The product of its digits is 1119744, while the sum is 50.

The square root of 489631946 is about 22127.6285670200. The cubic root of 489631946 is about 788.1760763739.

The spelling of 489631946 in words is "four hundred eighty-nine million, six hundred thirty-one thousand, nine hundred forty-six".