499997320 has 32 divisors (see below), whose sum is σ = 1139241600. Its totient is φ = 197466048.

The previous prime is 499997291. The next prime is 499997339. The reversal of 499997320 is 23799994.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75954 + ... + 82273.

It is an arithmetic number, because the mean of its divisors is an integer number (35601300).

Almost surely, 2^499997320 is an apocalyptic number.

499997320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

499997320 is an abundant number, since it is smaller than the sum of its proper divisors (639244280).

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

499997320 is a wasteful number, since it uses less digits than its factorization.

499997320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158317 (or 158313 counting only the distinct ones).

The product of its (nonzero) digits is 1102248, while the sum is 52.

The square root of 499997320 is about 22360.6198482958. The cubic root of 499997320 is about 793.6991079033.

The spelling of 499997320 in words is "four hundred ninety-nine million, nine hundred ninety-seven thousand, three hundred twenty".