492439 has 8 divisors (see below), whose sum is σ = 529200. Its totient is φ = 456576.

The previous prime is 492431. The next prime is 492463. The reversal of 492439 is 934294.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 492439 - 2³ = 492431 is a prime.

It is a Duffinian number.

492439 is a lucky number.

It is a nialpdrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 492439.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (492431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1237 + ... + 1585.

It is an arithmetic number, because the mean of its divisors is an integer number (66150).

2⁴⁹²⁴³⁹ is an apocalyptic number.

492439 is a deficient number, since it is larger than the sum of its proper divisors (36761).

492439 is a wasteful number, since it uses less digits than its factorization.

492439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449.

The product of its digits is 7776, while the sum is 31.

The square root of 492439 is about 701.7399803346. The cubic root of 492439 is about 78.9679408453.

The spelling of 492439 in words is "four hundred ninety-two thousand, four hundred thirty-nine".