499567728 has 160 divisors (see below), whose sum is σ = 1517617152. Its totient is φ = 140025600.

The previous prime is 499567723. The next prime is 499567799. The reversal of 499567728 is 827765994.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499567723) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 375801 + ... + 377127.

Almost surely, 2^499567728 is an apocalyptic number.

499567728 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 499567728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (758808576).

499567728 is an abundant number, since it is smaller than the sum of its proper divisors (1018049424).

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

499567728 is a wasteful number, since it uses less digits than its factorization.

499567728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1403 (or 1397 counting only the distinct ones).

The product of its digits is 7620480, while the sum is 57.

The square root of 499567728 is about 22351.0117891786. The cubic root of 499567728 is about 793.4717303610.

The spelling of 499567728 in words is "four hundred ninety-nine million, five hundred sixty-seven thousand, seven hundred twenty-eight".