499273728 has 104 divisors (see below), whose sum is σ = 1365079296. Its totient is φ = 162201600.

The previous prime is 499273661. The next prime is 499273729. The reversal of 499273728 is 827372994.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499273729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 503313 + ... + 504303.

Almost surely, 2^499273728 is an apocalyptic number.

499273728 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 499273728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (682539648).

499273728 is an abundant number, since it is smaller than the sum of its proper divisors (865805568).

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

499273728 is an equidigital number, since it uses as much as digits as its factorization.

499273728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1059 (or 1037 counting only the distinct ones).

The product of its digits is 1524096, while the sum is 51.

The square root of 499273728 is about 22344.4339377841. The cubic root of 499273728 is about 793.3160447864.

The spelling of 499273728 in words is "four hundred ninety-nine million, two hundred seventy-three thousand, seven hundred twenty-eight".