298218 has 16 divisors (see below), whose sum is σ = 622656. Its totient is φ = 95040.

The previous prime is 298213. The next prime is 298223. The reversal of 298218 is 812892.

It is an interprime number because it is at equal distance from previous prime (298213) and next prime (298223).

It is not an unprimeable number, because it can be changed into a prime (298211) by changing a digit.

298218 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is an upside-down number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 943 + ... + 1218.

It is an arithmetic number, because the mean of its divisors is an integer number (38916).

2²⁹⁸²¹⁸ is an apocalyptic number.

298218 is an abundant number, since it is smaller than the sum of its proper divisors (324438).

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

298218 is a wasteful number, since it uses less digits than its factorization.

298218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2189.

The product of its digits is 2304, while the sum is 30.

The square root of 298218 is about 546.0933986050. The cubic root of 298218 is about 66.8104839701.

The spelling of 298218 in words is "two hundred ninety-eight thousand, two hundred eighteen".