499327840 has 144 divisors (see below), whose sum is σ = 1324629936. Its totient is φ = 176384000.

The previous prime is 499327813. The next prime is 499327841. The reversal of 499327840 is 48723994.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499327841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4943790 + ... + 4943890.

It is an arithmetic number, because the mean of its divisors is an integer number (9198819).

Almost surely, 2^499327840 is an apocalyptic number.

499327840 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 499327840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (662314968).

499327840 is an abundant number, since it is smaller than the sum of its proper divisors (825302096).

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

499327840 is a wasteful number, since it uses less digits than its factorization.

499327840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233 (or 172 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 46.

The square root of 499327840 is about 22345.6447658151. The cubic root of 499327840 is about 793.3447039932.

The spelling of 499327840 in words is "four hundred ninety-nine million, three hundred twenty-seven thousand, eight hundred forty".