499999728 has 40 divisors (see below), whose sum is σ = 1292716368. Its totient is φ = 166531072.

The previous prime is 499999723. The next prime is 499999751. The reversal of 499999728 is 827999994.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499999723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68176 + ... + 75152.

Almost surely, 2^499999728 is an apocalyptic number.

499999728 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

499999728 is an abundant number, since it is smaller than the sum of its proper divisors (792716640).

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

499999728 is a wasteful number, since it uses less digits than its factorization.

499999728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8481 (or 8475 counting only the distinct ones).

The product of its digits is 26453952, while the sum is 66.

The square root of 499999728 is about 22360.6736928922. The cubic root of 499999728 is about 793.7003820597.

The spelling of 499999728 in words is "four hundred ninety-nine million, nine hundred ninety-nine thousand, seven hundred twenty-eight".