489948 has 12 divisors (see below), whose sum is σ = 1143240. Its totient is φ = 163312.

The previous prime is 489943. The next prime is 489959. The reversal of 489948 is 849984.

It is a tau number, because it is divible by the number of its divisors (12).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489941) 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, 20403 + ... + 20426.

It is an arithmetic number, because the mean of its divisors is an integer number (95270).

2⁴⁸⁹⁹⁴⁸ is an apocalyptic number.

It is an amenable number.

489948 is an abundant number, since it is smaller than the sum of its proper divisors (653292).

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

489948 is a wasteful number, since it uses less digits than its factorization.

489948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40836 (or 40834 counting only the distinct ones).

The product of its digits is 82944, while the sum is 42.

The square root of 489948 is about 699.9628561574. The cubic root of 489948 is about 78.8345627281.

The spelling of 489948 in words is "four hundred eighty-nine thousand, nine hundred forty-eight".