450242 has 8 divisors (see below), whose sum is σ = 727356. Its totient is φ = 207792.

The previous prime is 450239. The next prime is 450257. The reversal of 450242 is 242054.

It is a Cunningham number, because it is equal to 671²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 450241 + 1 = 671^2 + 1^2 .

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

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 450242.

It is an unprimeable number.

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, 8633 + ... + 8684.

2⁴⁵⁰²⁴² is an apocalyptic number.

450242 is a deficient number, since it is larger than the sum of its proper divisors (277114).

450242 is a wasteful number, since it uses less digits than its factorization.

450242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17332.

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 450242 is about 671.0007451561. Note that the first 3 decimals coincide. The cubic root of 450242 is about 76.6446775838.

Adding to 450242 its reverse (242054), we get a palindrome (692296).

It can be divided in two parts, 450 and 242, that multiplied together give a square (108900 = 330²).

The spelling of 450242 in words is "four hundred fifty thousand, two hundred forty-two".