297280 has 28 divisors (see below), whose sum is σ = 708660. Its totient is φ = 118784.

The previous prime is 297263. The next prime is 297289. The reversal of 297280 is 82792.

It can be written as a sum of positive squares in 2 ways, for example, as 43264 + 254016 = 208^2 + 504^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (297289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145 + ... + 784.

2²⁹⁷²⁸⁰ is an apocalyptic number.

297280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

297280 is an abundant number, since it is smaller than the sum of its proper divisors (411380).

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

297280 is an equidigital number, since it uses as much as digits as its factorization.

297280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 946 (or 936 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 297280 is about 545.2338947644. The cubic root of 297280 is about 66.7403629473.

The spelling of 297280 in words is "two hundred ninety-seven thousand, two hundred eighty".