450280 has 16 divisors (see below), whose sum is σ = 1013220. Its totient is φ = 180096.

The previous prime is 450277. The next prime is 450287. The reversal of 450280 is 82054.

It is a happy number.

450280 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 443556 + 6724 = 666^2 + 82^2 .

It is not an unprimeable number, because it can be changed into a prime (450287) 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, 5589 + ... + 5668.

2⁴⁵⁰²⁸⁰ is an apocalyptic number.

450280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

450280 is an abundant number, since it is smaller than the sum of its proper divisors (562940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

450280 is a wasteful number, since it uses less digits than its factorization.

450280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11268 (or 11264 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 450280 is about 671.0290604735. The cubic root of 450280 is about 76.6468337693.

The spelling of 450280 in words is "four hundred fifty thousand, two hundred eighty".