298240 has 36 divisors (see below), whose sum is σ = 717444. Its totient is φ = 118784.

The previous prime is 298237. The next prime is 298247. The reversal of 298240 is 42892.

298240 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 82944 + 215296 = 288^2 + 464^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (298247) 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, 1164 + ... + 1396.

It is an arithmetic number, because the mean of its divisors is an integer number (19929).

2²⁹⁸²⁴⁰ is an apocalyptic number.

298240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 298240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (358722).

298240 is an abundant number, since it is smaller than the sum of its proper divisors (419204).

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

298240 is an equidigital number, since it uses as much as digits as its factorization.

298240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254 (or 240 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 298240 is about 546.1135413080. The cubic root of 298240 is about 66.8121268337.

The spelling of 298240 in words is "two hundred ninety-eight thousand, two hundred forty".