499999720 has 32 divisors (see below), whose sum is σ = 1227273120. Its totient is φ = 181817920.

The previous prime is 499999697. The next prime is 499999723. The reversal of 499999720 is 27999994.

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, 567742 + ... + 568621.

It is an arithmetic number, because the mean of its divisors is an integer number (38352285).

Almost surely, 2^499999720 is an apocalyptic number.

499999720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

499999720 is an abundant number, since it is smaller than the sum of its proper divisors (727273400).

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

499999720 is a wasteful number, since it uses less digits than its factorization.

499999720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1136385 (or 1136381 counting only the distinct ones).

The product of its (nonzero) digits is 3306744, while the sum is 58.

The square root of 499999720 is about 22360.6735140067. The cubic root of 499999720 is about 793.7003778266.

The spelling of 499999720 in words is "four hundred ninety-nine million, nine hundred ninety-nine thousand, seven hundred twenty".