305298 has 24 divisors (see below), whose sum is σ = 756288. Its totient is φ = 87192.

The previous prime is 305297. The next prime is 305329. The reversal of 305298 is 892503.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (305297) 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 11 ways as a sum of consecutive naturals, for example, 1086 + ... + 1337.

It is an arithmetic number, because the mean of its divisors is an integer number (31512).

2³⁰⁵²⁹⁸ is an apocalyptic number.

305298 is an abundant number, since it is smaller than the sum of its proper divisors (450990).

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

305298 is a wasteful number, since it uses less digits than its factorization.

305298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2438 (or 2435 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 305298 is about 552.5377815136. The cubic root of 305298 is about 67.3350705910.

The spelling of 305298 in words is "three hundred five thousand, two hundred ninety-eight".