304392 has 32 divisors (see below), whose sum is σ = 830880. Its totient is φ = 92160.

The previous prime is 304391. The next prime is 304393. The reversal of 304392 is 293403.

It is an interprime number because it is at equal distance from previous prime (304391) and next prime (304393).

It is a Smith number, since the sum of its digits (21) coincides with the sum of the digits of its prime factors.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 304392.

It is not an unprimeable number, because it can be changed into a prime (304391) 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, 313 + ... + 840.

It is an arithmetic number, because the mean of its divisors is an integer number (25965).

2³⁰⁴³⁹² is an apocalyptic number.

It is an amenable number.

304392 is an abundant number, since it is smaller than the sum of its proper divisors (526488).

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

304392 is a wasteful number, since it uses less digits than its factorization.

304392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1173 (or 1169 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 304392 is about 551.7173189234. The cubic root of 304392 is about 67.2683969145.

Adding to 304392 its reverse (293403), we get a palindrome (597795).

It can be divided in two parts, 304 and 392, that added together give a palindrome (696).

The spelling of 304392 in words is "three hundred four thousand, three hundred ninety-two".