298221 has 16 divisors (see below), whose sum is σ = 496128. Its totient is φ = 154800.

The previous prime is 298213. The next prime is 298223. The reversal of 298221 is 122892.

It is not a de Polignac number, because 298221 - 2³ = 298213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 298191 and 298200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (298223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 415 + ... + 876.

It is an arithmetic number, because the mean of its divisors is an integer number (31008).

2²⁹⁸²²¹ is an apocalyptic number.

298221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

298221 is a deficient number, since it is larger than the sum of its proper divisors (197907).

298221 is a wasteful number, since it uses less digits than its factorization.

298221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1312.

The product of its digits is 576, while the sum is 24.

The square root of 298221 is about 546.0961453810. The cubic root of 298221 is about 66.8107080017.

It can be divided in two parts, 2982 and 21, that added together give a palindrome (3003).

The spelling of 298221 in words is "two hundred ninety-eight thousand, two hundred twenty-one".