450945 has 24 divisors (see below), whose sum is σ = 853632. Its totient is φ = 218400.

The previous prime is 450943. The next prime is 450949. The reversal of 450945 is 549054.

450945 = 116² + 117² + ... + 142².

It is not a de Polignac number, because 450945 - 2¹ = 450943 is a prime.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (450943) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40 + ... + 950.

It is an arithmetic number, because the mean of its divisors is an integer number (35568).

2⁴⁵⁰⁹⁴⁵ is an apocalyptic number.

450945 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

450945 is a deficient number, since it is larger than the sum of its proper divisors (402687).

450945 is a wasteful number, since it uses less digits than its factorization.

450945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 933 (or 930 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 450945 is about 671.5243852609. The cubic root of 450945 is about 76.6845473942.

Adding to 450945 its reverse (549054), we get a palindrome (999999).

It can be divided in two parts, 4509 and 45, that added together give a palindrome (4554).

The spelling of 450945 in words is "four hundred fifty thousand, nine hundred forty-five".