304480561 has 12 divisors (see below), whose sum is σ = 386391600. Its totient is φ = 237257160.

The previous prime is 304480537. The next prime is 304480571. The reversal of 304480561 is 165084403.

It is a happy number.

It is not a de Polignac number, because 304480561 - 2¹³ = 304472369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (304480531) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 281911 + ... + 282988.

It is an arithmetic number, because the mean of its divisors is an integer number (32199300).

Almost surely, 2^304480561 is an apocalyptic number.

It is an amenable number.

304480561 is a deficient number, since it is larger than the sum of its proper divisors (81911039).

304480561 is a wasteful number, since it uses less digits than its factorization.

304480561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564924 (or 564917 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 304480561 is about 17449.3713640349. The cubic root of 304480561 is about 672.7492005885.

The spelling of 304480561 in words is "three hundred four million, four hundred eighty thousand, five hundred sixty-one".