499998720 has 224 divisors, whose sum is σ = 1728472032. Its totient is φ = 122683392.

The previous prime is 499998683. The next prime is 499998749. The reversal of 499998720 is 27899994.

It is a congruent number.

It is an unprimeable 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 15 ways as a sum of consecutive naturals, for example, 1597284 + ... + 1597596.

It is an arithmetic number, because the mean of its divisors is an integer number (7716393).

Almost surely, 2^499998720 is an apocalyptic number.

499998720 is a gapful number since it is divisible by the number (40) 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 499998720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (864236016).

499998720 is an abundant number, since it is smaller than the sum of its proper divisors (1228473312).

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

499998720 is a wasteful number, since it uses less digits than its factorization.

499998720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360 (or 336 counting only the distinct ones).

The product of its (nonzero) digits is 2939328, while the sum is 57.

The square root of 499998720 is about 22360.6511533095. The cubic root of 499998720 is about 793.6998486924.

The spelling of 499998720 in words is "four hundred ninety-nine million, nine hundred ninety-eight thousand, seven hundred twenty".