304004045 has 4 divisors (see below), whose sum is σ = 364804860. Its totient is φ = 243203232.

The previous prime is 304004039. The next prime is 304004059. The reversal of 304004045 is 540400403.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 31787044 + 272217001 = 5638^2 + 16499^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-304004045 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30400400 + ... + 30400409.

It is an arithmetic number, because the mean of its divisors is an integer number (91201215).

Almost surely, 2^304004045 is an apocalyptic number.

It is an amenable number.

304004045 is a deficient number, since it is larger than the sum of its proper divisors (60800815).

304004045 is an equidigital number, since it uses as much as digits as its factorization.

304004045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60800814.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 304004045 is about 17435.7117721073. The cubic root of 304004045 is about 672.3980636252.

Adding to 304004045 its reverse (540400403), we get a palindrome (844404448).

The spelling of 304004045 in words is "three hundred four million, four thousand, forty-five".