499728 has 40 divisors (see below), whose sum is σ = 1339200. Its totient is φ = 160384.

The previous prime is 499717. The next prime is 499729. The reversal of 499728 is 827994.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (499729) by changing a digit.

499728 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1213 + ... + 1571.

It is an arithmetic number, because the mean of its divisors is an integer number (33480).

2⁴⁹⁹⁷²⁸ is an apocalyptic number.

499728 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 499728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (669600).

499728 is an abundant number, since it is smaller than the sum of its proper divisors (839472).

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

499728 is a wasteful number, since it uses less digits than its factorization.

499728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399 (or 393 counting only the distinct ones).

The product of its digits is 36288, while the sum is 39.

The square root of 499728 is about 706.9144219777. The cubic root of 499728 is about 79.3556575516.

The spelling of 499728 in words is "four hundred ninety-nine thousand, seven hundred twenty-eight".