304906065489 has 27 divisors (see below), whose sum is σ = 444986320233. Its totient is φ = 201184562952.

The previous prime is 304906065481. The next prime is 304906065547. The reversal of 304906065489 is 984560609403.

The square root of 304906065489 is 552183.

It is a perfect power (a square), and thus also a powerful number.

304906065489 is a `hidden beast` number, since 3 + 0 + 4 + 90 + 6 + 0 + 6 + 548 + 9 = 666.

It is not a de Polignac number, because 304906065489 - 2³ = 304906065481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (304906065481) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 170623654 + ... + 170625440.

Almost surely, 2^304906065489 is an apocalyptic number.

304906065489 is the 552183-rd square number.

304906065489 is the 276092-nd centered octagonal number.

It is an amenable number.

304906065489 is a deficient number, since it is larger than the sum of its proper divisors (140080254744).

304906065489 is an frugal number, since it uses more digits than its factorization.

304906065489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3786 (or 1893 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 54.

The spelling of 304906065489 in words is "three hundred four billion, nine hundred six million, sixty-five thousand, four hundred eighty-nine".