499770 has 40 divisors (see below), whose sum is σ = 1346004. Its totient is φ = 133056.

The previous prime is 499747. The next prime is 499781. The reversal of 499770 is 77994.

It can be written as a sum of positive squares in 2 ways, for example, as 431649 + 68121 = 657^2 + 261^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 502 + ... + 1118.

2⁴⁹⁹⁷⁷⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 499770, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (673002).

499770 is an abundant number, since it is smaller than the sum of its proper divisors (846234).

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

499770 is a wasteful number, since it uses less digits than its factorization.

499770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636 (or 627 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 36.

The square root of 499770 is about 706.9441279196. The cubic root of 499770 is about 79.3578806571.

The spelling of 499770 in words is "four hundred ninety-nine thousand, seven hundred seventy".