499475493 has 24 divisors (see below), whose sum is σ = 789998976. Its totient is φ = 301579200.

The previous prime is 499475443. The next prime is 499475513. The reversal of 499475493 is 394574994.

499475493 is a `hidden beast` number, since 4 + 9 + 94 + 7 + 549 + 3 = 666.

It is not a de Polignac number, because 499475493 - 2⁸ = 499475237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499475443) 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, 17521 + ... + 36137.

It is an arithmetic number, because the mean of its divisors is an integer number (32916624).

Almost surely, 2^499475493 is an apocalyptic number.

It is an amenable number.

499475493 is a deficient number, since it is larger than the sum of its proper divisors (290523483).

499475493 is a wasteful number, since it uses less digits than its factorization.

499475493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18905 (or 18902 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 54.

The square root of 499475493 is about 22348.9483645204. The cubic root of 499475493 is about 793.4228945605.

The spelling of 499475493 in words is "four hundred ninety-nine million, four hundred seventy-five thousand, four hundred ninety-three".