492221 has 4 divisors (see below), whose sum is σ = 503712. Its totient is φ = 480732.

The previous prime is 492113. The next prime is 492227. The reversal of 492221 is 122294.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 492221 - 2¹⁴ = 475837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 492193 and 492202.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 492221.

It is not an unprimeable number, because it can be changed into a prime (492227) 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 3 ways as a sum of consecutive naturals, for example, 5681 + ... + 5766.

It is an arithmetic number, because the mean of its divisors is an integer number (125928).

2⁴⁹²²²¹ is an apocalyptic number.

It is an amenable number.

492221 is a deficient number, since it is larger than the sum of its proper divisors (11491).

492221 is a wasteful number, since it uses less digits than its factorization.

492221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11490.

The product of its digits is 288, while the sum is 20.

The square root of 492221 is about 701.5846349515. The cubic root of 492221 is about 78.9562862363.

The spelling of 492221 in words is "four hundred ninety-two thousand, two hundred twenty-one".