30298 has 4 divisors (see below), whose sum is σ = 45450. Its totient is φ = 15148.

The previous prime is 30293. The next prime is 30307. The reversal of 30298 is 89203.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 23409 + 6889 = 153^2 + 83^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (30293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7573 + ... + 7576.

2³⁰²⁹⁸ is an apocalyptic number.

30298 is a deficient number, since it is larger than the sum of its proper divisors (15152).

30298 is a wasteful number, since it uses less digits than its factorization.

30298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15151.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 30298 is about 174.0632069106. The cubic root of 30298 is about 31.1748701878.

Subtracting from 30298 its sum of digits (22), we obtain a square (30276 = 174²).

It can be divided in two parts, 302 and 98, that added together give a square (400 = 20²).

The spelling of 30298 in words is "thirty thousand, two hundred ninety-eight".