305098 has 8 divisors (see below), whose sum is σ = 463680. Its totient is φ = 150540.

The previous prime is 305093. The next prime is 305101. The reversal of 305098 is 890503.

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

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 (305093) by changing a digit.

305098 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 808 + ... + 1123.

It is an arithmetic number, because the mean of its divisors is an integer number (57960).

2³⁰⁵⁰⁹⁸ is an apocalyptic number.

305098 is a deficient number, since it is larger than the sum of its proper divisors (158582).

305098 is a wasteful number, since it uses less digits than its factorization.

305098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2012.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 305098 is about 552.3567687645. The cubic root of 305098 is about 67.3203636970.

The spelling of 305098 in words is "three hundred five thousand, ninety-eight".