492405 has 16 divisors (see below), whose sum is σ = 834624. Its totient is φ = 247040.

The previous prime is 492403. The next prime is 492409. The reversal of 492405 is 504294.

It is not a de Polignac number, because 492405 - 2¹ = 492403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (492403) 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 15 ways as a sum of consecutive naturals, for example, 711 + ... + 1220.

It is an arithmetic number, because the mean of its divisors is an integer number (52164).

2⁴⁹²⁴⁰⁵ is an apocalyptic number.

It is an amenable number.

492405 is a deficient number, since it is larger than the sum of its proper divisors (342219).

492405 is a wasteful number, since it uses less digits than its factorization.

492405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1956.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 492405 is about 701.7157544191. The cubic root of 492405 is about 78.9661233804.

Adding to 492405 its reverse (504294), we get a palindrome (996699).

The spelling of 492405 in words is "four hundred ninety-two thousand, four hundred five".