499678590 has 32 divisors (see below), whose sum is σ = 1207866240. Its totient is φ = 132287904.

The previous prime is 499678589. The next prime is 499678591. The reversal of 499678590 is 95876994.

It is an interprime number because it is at equal distance from previous prime (499678589) and next prime (499678591).

It is a self number, because there is not a number n which added to its sum of digits gives 499678590.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499678591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55744 + ... + 64083.

It is an arithmetic number, because the mean of its divisors is an integer number (37745820).

Almost surely, 2^499678590 is an apocalyptic number.

499678590 is an abundant number, since it is smaller than the sum of its proper divisors (708187650).

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

499678590 is a wasteful number, since it uses less digits than its factorization.

499678590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119976.

The product of its (nonzero) digits is 4898880, while the sum is 57.

The square root of 499678590 is about 22353.4916735619. The cubic root of 499678590 is about 793.5304206725.

The spelling of 499678590 in words is "four hundred ninety-nine million, six hundred seventy-eight thousand, five hundred ninety".