450813 has 16 divisors (see below), whose sum is σ = 691200. Its totient is φ = 258480.

The previous prime is 450811. The next prime is 450817. The reversal of 450813 is 318054.

It is not a de Polignac number, because 450813 - 2¹ = 450811 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 450813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 268 + ... + 986.

It is an arithmetic number, because the mean of its divisors is an integer number (43200).

2⁴⁵⁰⁸¹³ is an apocalyptic number.

It is an amenable number.

450813 is a deficient number, since it is larger than the sum of its proper divisors (240387).

450813 is a wasteful number, since it uses less digits than its factorization.

450813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 450813 is about 671.4260942204. The cubic root of 450813 is about 76.6770643323.

Adding to 450813 its reverse (318054), we get a palindrome (768867).

The spelling of 450813 in words is "four hundred fifty thousand, eight hundred thirteen".