128298 has 8 divisors (see below), whose sum is σ = 256608. Its totient is φ = 42764.

The previous prime is 128291. The next prime is 128311. The reversal of 128298 is 892821.

It is a sphenic number, since it is the product of 3 distinct primes.

128298 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (128291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10686 + ... + 10697.

It is an arithmetic number, because the mean of its divisors is an integer number (32076).

2¹²⁸²⁹⁸ is an apocalyptic number.

128298 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

128298 is a wasteful number, since it uses less digits than its factorization.

128298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21388.

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

The square root of 128298 is about 358.1871019453. The cubic root of 128298 is about 50.4359217332.

The spelling of 128298 in words is "one hundred twenty-eight thousand, two hundred ninety-eight".