492209 has 4 divisors (see below), whose sum is σ = 500340. Its totient is φ = 484080.

The previous prime is 492113. The next prime is 492227. The reversal of 492209 is 902294.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6400 + 485809 = 80^2 + 697^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-492209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (492299) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3974 + ... + 4095.

It is an arithmetic number, because the mean of its divisors is an integer number (125085).

2⁴⁹²²⁰⁹ is an apocalyptic number.

It is an amenable number.

492209 is a deficient number, since it is larger than the sum of its proper divisors (8131).

492209 is an equidigital number, since it uses as much as digits as its factorization.

492209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8130.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 492209 is about 701.5760828307. The cubic root of 492209 is about 78.9556445983.

It can be divided in two parts, 49 and 2209, that multiplied together give a square (108241 = 329²).

The spelling of 492209 in words is "four hundred ninety-two thousand, two hundred nine".