499958816 has 48 divisors (see below), whose sum is σ = 1131891264. Its totient is φ = 212937984.

The previous prime is 499958813. The next prime is 499958819. The reversal of 499958816 is 618859994.

It is an interprime number because it is at equal distance from previous prime (499958813) and next prime (499958819).

It is a super-2 number, since 2×499958816² = 499917635392243712, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (499958813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29666 + ... + 43358.

It is an arithmetic number, because the mean of its divisors is an integer number (23581068).

Almost surely, 2^499958816 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 499958816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (565945632).

499958816 is an abundant number, since it is smaller than the sum of its proper divisors (631932448).

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

499958816 is a wasteful number, since it uses less digits than its factorization.

499958816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13873 (or 13865 counting only the distinct ones).

The product of its digits is 5598720, while the sum is 59.

The square root of 499958816 is about 22359.7588537980. The cubic root of 499958816 is about 793.6787335441.

The spelling of 499958816 in words is "four hundred ninety-nine million, nine hundred fifty-eight thousand, eight hundred sixteen".