499231320 has 128 divisors (see below), whose sum is σ = 1739888640. Its totient is φ = 112227840.

The previous prime is 499231301. The next prime is 499231361. The reversal of 499231320 is 23132994.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46369 + ... + 56111.

It is an arithmetic number, because the mean of its divisors is an integer number (13592880).

Almost surely, 2^499231320 is an apocalyptic number.

499231320 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 499231320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (869944320).

499231320 is an abundant number, since it is smaller than the sum of its proper divisors (1240657320).

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

499231320 is a wasteful number, since it uses less digits than its factorization.

499231320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9825 (or 9821 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 499231320 is about 22343.4849564700. The cubic root of 499231320 is about 793.2935828932.

The spelling of 499231320 in words is "four hundred ninety-nine million, two hundred thirty-one thousand, three hundred twenty".