499861856 has 96 divisors (see below), whose sum is σ = 1109541888. Its totient is φ = 220101120.

The previous prime is 499861853. The next prime is 499861867. The reversal of 499861856 is 658168994.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499861853) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1070135 + ... + 1070601.

It is an arithmetic number, because the mean of its divisors is an integer number (11557728).

Almost surely, 2^499861856 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 499861856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (554770944).

499861856 is an abundant number, since it is smaller than the sum of its proper divisors (609680032).

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

499861856 is a wasteful number, since it uses less digits than its factorization.

499861856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604 (or 596 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 56.

The square root of 499861856 is about 22357.5905678586. The cubic root of 499861856 is about 793.6274226075.

The spelling of 499861856 in words is "four hundred ninety-nine million, eight hundred sixty-one thousand, eight hundred fifty-six".