489831852 has 18 divisors (see below), whose sum is σ = 1143119908. Its totient is φ = 163251728.

The previous prime is 489831821. The next prime is 489831893. The reversal of 489831852 is 258138984.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 73474 + ... + 79862.

Almost surely, 2^489831852 is an apocalyptic number.

It is an amenable number.

489831852 is an abundant number, since it is smaller than the sum of its proper divisors (653288056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

489831852 is an frugal number, since it uses more digits than its factorization.

489831852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12785 (or 6394 counting only the distinct ones).

The product of its digits is 552960, while the sum is 48.

The square root of 489831852 is about 22132.1452191151. The cubic root of 489831852 is about 788.2833267892.

Multiplying 489831852 by its sum of digits (48), we get a square (23511928896 = 153336²).

The spelling of 489831852 in words is "four hundred eighty-nine million, eight hundred thirty-one thousand, eight hundred fifty-two".