304023 has 4 divisors (see below), whose sum is σ = 405368. Its totient is φ = 202680.

The previous prime is 304021. The next prime is 304033. The reversal of 304023 is 320403.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 320403 = 3 ⋅106801.

It is not a de Polignac number, because 304023 - 2¹ = 304021 is a prime.

It is a D-number.

It is a Duffinian number.

304023 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304021) 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, 50668 + ... + 50673.

It is an arithmetic number, because the mean of its divisors is an integer number (101342).

2³⁰⁴⁰²³ is an apocalyptic number.

304023 is a deficient number, since it is larger than the sum of its proper divisors (101345).

304023 is a wasteful number, since it uses less digits than its factorization.

304023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101344.

The product of its (nonzero) digits is 72, while the sum is 12.

The square root of 304023 is about 551.3828071313. The cubic root of 304023 is about 67.2412038264.

Adding to 304023 its reverse (320403), we get a palindrome (624426).

The spelling of 304023 in words is "three hundred four thousand, twenty-three", and thus it is an iban number.