499980384 has 96 divisors (see below), whose sum is σ = 1471932000. Its totient is φ = 165100032.

The previous prime is 499980379. The next prime is 499980391. The reversal of 499980384 is 483089994.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 499980384.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 91522 + ... + 96830.

It is an arithmetic number, because the mean of its divisors is an integer number (15332625).

Almost surely, 2^499980384 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 499980384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (735966000).

499980384 is an abundant number, since it is smaller than the sum of its proper divisors (971951616).

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

499980384 is a wasteful number, since it uses less digits than its factorization.

499980384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5437 (or 5423 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The square root of 499980384 is about 22360.2411436013. The cubic root of 499980384 is about 793.6901463620.

The spelling of 499980384 in words is "four hundred ninety-nine million, nine hundred eighty thousand, three hundred eighty-four".