499721170 has 24 divisors (see below), whose sum is σ = 974016036. Its totient is φ = 184511808.

The previous prime is 499721129. The next prime is 499721191. The reversal of 499721170 is 71127994.

It can be written as a sum of positive squares in 6 ways, for example, as 1940449 + 497780721 = 1393^2 + 22311^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 146157 + ... + 149536.

Almost surely, 2^499721170 is an apocalyptic number.

499721170 is a deficient number, since it is larger than the sum of its proper divisors (474294866).

499721170 is a wasteful number, since it uses less digits than its factorization.

499721170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295726 (or 295713 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 40.

The square root of 499721170 is about 22354.4440771852. Note that the first 3 decimals coincide. The cubic root of 499721170 is about 793.5529602051.

The spelling of 499721170 in words is "four hundred ninety-nine million, seven hundred twenty-one thousand, one hundred seventy".