304398 has 20 divisors (see below), whose sum is σ = 682440. Its totient is φ = 101412.

The previous prime is 304393. The next prime is 304411. The reversal of 304398 is 893403.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304391) by changing a digit.

304398 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 9 ways as a sum of consecutive naturals, for example, 778 + ... + 1101.

It is an arithmetic number, because the mean of its divisors is an integer number (34122).

2³⁰⁴³⁹⁸ is an apocalyptic number.

304398 is an abundant number, since it is smaller than the sum of its proper divisors (378042).

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

304398 is a wasteful number, since it uses less digits than its factorization.

304398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1893 (or 1884 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 304398 is about 551.7227564638. The cubic root of 304398 is about 67.2688388969.

The spelling of 304398 in words is "three hundred four thousand, three hundred ninety-eight".