304340297 has 4 divisors (see below), whose sum is σ = 314834820. Its totient is φ = 293845776.

The previous prime is 304340287. The next prime is 304340303. The reversal of 304340297 is 792043403.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 792043403 = 983 ⋅805741.

It can be written as a sum of positive squares in 2 ways, for example, as 223681936 + 80658361 = 14956^2 + 8981^2 .

It is a cyclic number.

It is not a de Polignac number, because 304340297 - 2¹⁴ = 304323913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (304340227) 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, 5247218 + ... + 5247275.

It is an arithmetic number, because the mean of its divisors is an integer number (78708705).

Almost surely, 2^304340297 is an apocalyptic number.

It is an amenable number.

304340297 is a deficient number, since it is larger than the sum of its proper divisors (10494523).

304340297 is a wasteful number, since it uses less digits than its factorization.

304340297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10494522.

The product of its (nonzero) digits is 18144, while the sum is 32.

The square root of 304340297 is about 17445.3517304754. The cubic root of 304340297 is about 672.6458803774.

The spelling of 304340297 in words is "three hundred four million, three hundred forty thousand, two hundred ninety-seven".