306985441 has 9 divisors (see below), whose sum is σ = 357248241. Its totient is φ = 263025252.

The previous prime is 306985433. The next prime is 306985447. The reversal of 306985441 is 144589603.

The square root of 306985441 is 17521.

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

It is not a de Polignac number, because 306985441 - 2³ = 306985433 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 306985394 and 306985403.

It is not an unprimeable number, because it can be changed into a prime (306985447) 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 8 ways as a sum of consecutive naturals, for example, 121396 + ... + 123898.

It is an arithmetic number, because the mean of its divisors is an integer number (39694249).

Almost surely, 2^306985441 is an apocalyptic number.

306985441 is the 17521-st square number.

306985441 is the 8761-st centered octagonal number.

It is an amenable number.

306985441 is a deficient number, since it is larger than the sum of its proper divisors (50262800).

306985441 is an frugal number, since it uses more digits than its factorization.

306985441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5020 (or 2510 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The cubic root of 306985441 is about 674.5890070534.

The spelling of 306985441 in words is "three hundred six million, nine hundred eighty-five thousand, four hundred forty-one".