499989826 has 48 divisors (see below), whose sum is σ = 922743360. Its totient is φ = 202033440.

The previous prime is 499989803. The next prime is 499989827. The reversal of 499989826 is 628989994.

It is a super-2 number, since 2×499989826² = 499979652207020552, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (499989827) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 489196 + ... + 490216.

It is an arithmetic number, because the mean of its divisors is an integer number (19223820).

Almost surely, 2^499989826 is an apocalyptic number.

499989826 is a deficient number, since it is larger than the sum of its proper divisors (422753534).

499989826 is a wasteful number, since it uses less digits than its factorization.

499989826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1319 (or 1312 counting only the distinct ones).

The product of its digits is 20155392, while the sum is 64.

The square root of 499989826 is about 22360.4522762846. The cubic root of 499989826 is about 793.6951425415.

The spelling of 499989826 in words is "four hundred ninety-nine million, nine hundred eighty-nine thousand, eight hundred twenty-six".