304039 has 2 divisors, whose sum is σ = 304040.
Its totient is φ = 304038.
The previous prime is 304033. The next prime is 304049. The reversal of 304039 is 930403.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 304039 - 211 = 301991 is a prime.
It is a Chen prime.
It is equal to p26326 and since 304039 and 26326 have the same sum of digits, it is a Honaker prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (304033) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152019 + 152020.
It is an arithmetic number, because the mean of its divisors is an integer number (152020).
2304039 is an apocalyptic number.
304039 is a deficient number, since it is larger than the sum of its proper divisors (1).
304039 is an equidigital number, since it uses as much as digits as its factorization.
304039 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 324, while the sum is 19.
The square root of 304039 is about 551.3973159166.
The cubic root of 304039 is about 67.2423833867.
The spelling of 304039 in words is "three hundred four thousand, thirty-nine".