499648 has 28 divisors (see below), whose sum is σ = 1023112. Its totient is φ = 241920.

The previous prime is 499637. The next prime is 499649. The reversal of 499648 is 846994.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 499648.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499649) by changing a digit.

499648 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2263 + ... + 2473.

2⁴⁹⁹⁶⁴⁸ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 499648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (511556).

499648 is an abundant number, since it is smaller than the sum of its proper divisors (523464).

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

499648 is a wasteful number, since it uses less digits than its factorization.

499648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260 (or 250 counting only the distinct ones).

The product of its digits is 62208, while the sum is 40.

The square root of 499648 is about 706.8578357775. The cubic root of 499648 is about 79.3514227202.

The spelling of 499648 in words is "four hundred ninety-nine thousand, six hundred forty-eight".