499791189 has 16 divisors (see below), whose sum is σ = 683504640. Its totient is φ = 324656640.

The previous prime is 499791179. The next prime is 499791197. The reversal of 499791189 is 981197994.

It is not a de Polignac number, because 499791189 - 2⁵ = 499791157 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499791169) 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, 118092 + ... + 122250.

It is an arithmetic number, because the mean of its divisors is an integer number (42719040).

Almost surely, 2^499791189 is an apocalyptic number.

It is an amenable number.

499791189 is a deficient number, since it is larger than the sum of its proper divisors (183713451).

499791189 is a wasteful number, since it uses less digits than its factorization.

499791189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5180.

The product of its digits is 1469664, while the sum is 57.

The square root of 499791189 is about 22356.0101315060. The cubic root of 499791189 is about 793.5900216660.

The spelling of 499791189 in words is "four hundred ninety-nine million, seven hundred ninety-one thousand, one hundred eighty-nine".