492494868 has 72 divisors (see below), whose sum is σ = 1273708800. Its totient is φ = 160395456.

The previous prime is 492494773. The next prime is 492494903. The reversal of 492494868 is 868494294.

492494868 is a `hidden beast` number, since 4 + 92 + 494 + 8 + 68 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 684613 + ... + 685331.

It is an arithmetic number, because the mean of its divisors is an integer number (17690400).

Almost surely, 2^492494868 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 492494868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (636854400).

492494868 is an abundant number, since it is smaller than the sum of its proper divisors (781213932).

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

492494868 is a wasteful number, since it uses less digits than its factorization.

492494868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1141 (or 1136 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 54.

The square root of 492494868 is about 22192.2253953947. The cubic root of 492494868 is about 789.7092707920.

The spelling of 492494868 in words is "four hundred ninety-two million, four hundred ninety-four thousand, eight hundred sixty-eight".