450805 has 8 divisors (see below), whose sum is σ = 559800. Its totient is φ = 348096.

The previous prime is 450803. The next prime is 450809. The reversal of 450805 is 508054.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 11236 + 439569 = 106^2 + 663^2 .

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 450805 - 2¹ = 450803 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450803) 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, 1410 + ... + 1699.

It is an arithmetic number, because the mean of its divisors is an integer number (69975).

2⁴⁵⁰⁸⁰⁵ is an apocalyptic number.

It is an amenable number.

450805 is a deficient number, since it is larger than the sum of its proper divisors (108995).

450805 is a wasteful number, since it uses less digits than its factorization.

450805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3143.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 450805 is about 671.4201367251. The cubic root of 450805 is about 76.6766107664.

Adding to 450805 its reverse (508054), we get a palindrome (958859).

The spelling of 450805 in words is "four hundred fifty thousand, eight hundred five".