304402393 has 8 divisors (see below), whose sum is σ = 307930112. Its totient is φ = 300882816.

The previous prime is 304402387. The next prime is 304402403. The reversal of 304402393 is 393204403.

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

It is a cyclic number.

It is not a de Polignac number, because 304402393 - 2¹³ = 304394201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (304402093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103996 + ... + 106882.

It is an arithmetic number, because the mean of its divisors is an integer number (38491264).

Almost surely, 2^304402393 is an apocalyptic number.

It is an amenable number.

304402393 is a deficient number, since it is larger than the sum of its proper divisors (3527719).

304402393 is a wasteful number, since it uses less digits than its factorization.

304402393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4071.

The product of its (nonzero) digits is 7776, while the sum is 28.

The square root of 304402393 is about 17447.1313687953. The cubic root of 304402393 is about 672.6916249804.

Adding to 304402393 its reverse (393204403), we get a palindrome (697606796).

The spelling of 304402393 in words is "three hundred four million, four hundred two thousand, three hundred ninety-three".