499390458 has 24 divisors (see below), whose sum is σ = 1161847872. Its totient is φ = 142682904.

The previous prime is 499390457. The next prime is 499390459. The reversal of 499390458 is 854093994.

It is an interprime number because it is at equal distance from previous prime (499390457) and next prime (499390459).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 499390458.

It is not an unprimeable number, because it can be changed into a prime (499390457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 849010 + ... + 849597.

It is an arithmetic number, because the mean of its divisors is an integer number (48410328).

Almost surely, 2^499390458 is an apocalyptic number.

499390458 is an abundant number, since it is smaller than the sum of its proper divisors (662457414).

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

499390458 is a wasteful number, since it uses less digits than its factorization.

499390458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1698626 (or 1698619 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 51.

The square root of 499390458 is about 22347.0458450329. The cubic root of 499390458 is about 793.3778656279.

The spelling of 499390458 in words is "four hundred ninety-nine million, three hundred ninety thousand, four hundred fifty-eight".