304130045 has 16 divisors (see below), whose sum is σ = 370908720. Its totient is φ = 239353344.

The previous prime is 304130003. The next prime is 304130053. The reversal of 304130045 is 540031403.

It can be written as a sum of positive squares in 8 ways, for example, as 9012004 + 295118041 = 3002^2 + 17179^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-304130045 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 304129999 and 304130026.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 184967 + ... + 186603.

It is an arithmetic number, because the mean of its divisors is an integer number (23181795).

Almost surely, 2^304130045 is an apocalyptic number.

It is an amenable number.

304130045 is a deficient number, since it is larger than the sum of its proper divisors (66778675).

304130045 is a wasteful number, since it uses less digits than its factorization.

304130045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2224.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 304130045 is about 17439.3246715577. The cubic root of 304130045 is about 672.4909466588.

Adding to 304130045 its reverse (540031403), we get a palindrome (844161448).

The spelling of 304130045 in words is "three hundred four million, one hundred thirty thousand, forty-five".