307304245 has 16 divisors (see below), whose sum is σ = 376049520. Its totient is φ = 241035264.

The previous prime is 307304243. The next prime is 307304251. The reversal of 307304245 is 542403703.

It can be written as a sum of positive squares in 8 ways, for example, as 3359889 + 303944356 = 1833^2 + 17434^2 .

It is a cyclic number.

It is not a de Polignac number, because 307304245 - 2¹ = 307304243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (307304243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49959 + ... + 55771.

It is an arithmetic number, because the mean of its divisors is an integer number (23503095).

Almost surely, 2^307304245 is an apocalyptic number.

It is an amenable number.

307304245 is a deficient number, since it is larger than the sum of its proper divisors (68745275).

307304245 is a wasteful number, since it uses less digits than its factorization.

307304245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6024.

The product of its (nonzero) digits is 10080, while the sum is 28.

The square root of 307304245 is about 17530.0954076126. The cubic root of 307304245 is about 674.8224462125.

Adding to 307304245 its reverse (542403703), we get a palindrome (849707948).

The spelling of 307304245 in words is "three hundred seven million, three hundred four thousand, two hundred forty-five".