298628 has 18 divisors (see below), whose sum is σ = 575358. Its totient is φ = 135520.

The previous prime is 298621. The next prime is 298631. The reversal of 298628 is 826892.

298628 is nontrivially palindromic in base 16.

It can be written as a sum of positive squares in only one way, i.e., 174724 + 123904 = 418^2 + 352^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 298628.

It is not an unprimeable number, because it can be changed into a prime (298621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 176 + ... + 792.

2²⁹⁸⁶²⁸ is an apocalyptic number.

It is an amenable number.

298628 is a deficient number, since it is larger than the sum of its proper divisors (276730).

298628 is a wasteful number, since it uses less digits than its factorization.

298628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643 (or 630 counting only the distinct ones).

The product of its digits is 13824, while the sum is 35.

The square root of 298628 is about 546.4686633285. The cubic root of 298628 is about 66.8410877060.

The spelling of 298628 in words is "two hundred ninety-eight thousand, six hundred twenty-eight".