499658880 has 384 divisors, whose sum is σ = 1908852480. Its totient is φ = 110788608.

The previous prime is 499658867. The next prime is 499658881. The reversal of 499658880 is 88856994.

It is a tau number, because it is divible by the number of its divisors (384).

It is a self number, because there is not a number n which added to its sum of digits gives 499658880.

It is not an unprimeable number, because it can be changed into a prime (499658881) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4421704 + ... + 4421816.

It is an arithmetic number, because the mean of its divisors is an integer number (4970970).

Almost surely, 2^499658880 is an apocalyptic number.

499658880 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 499658880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (954426240).

499658880 is an abundant number, since it is smaller than the sum of its proper divisors (1409193600).

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

499658880 is a wasteful number, since it uses less digits than its factorization.

499658880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196 (or 177 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 57.

The square root of 499658880 is about 22353.0507984928. The cubic root of 499658880 is about 793.5199868386.

The spelling of 499658880 in words is "four hundred ninety-nine million, six hundred fifty-eight thousand, eight hundred eighty".