450365 has 4 divisors (see below), whose sum is σ = 540444. Its totient is φ = 360288.

The previous prime is 450361. The next prime is 450367. The reversal of 450365 is 563054.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 563054 = 2 ⋅281527.

It can be written as a sum of positive squares in 2 ways, for example, as 116281 + 334084 = 341^2 + 578^2 .

It is a cyclic number.

It is not a de Polignac number, because 450365 - 2² = 450361 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 450365.

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 450365.

It is not an unprimeable number, because it can be changed into a prime (450361) 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, 45032 + ... + 45041.

It is an arithmetic number, because the mean of its divisors is an integer number (135111).

2⁴⁵⁰³⁶⁵ is an apocalyptic number.

It is an amenable number.

450365 is a deficient number, since it is larger than the sum of its proper divisors (90079).

450365 is an equidigital number, since it uses as much as digits as its factorization.

450365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90078.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 450365 is about 671.0923930429. The cubic root of 450365 is about 76.6516563767.

The spelling of 450365 in words is "four hundred fifty thousand, three hundred sixty-five".