306345641 has 16 divisors (see below), whose sum is σ = 361390080. Its totient is φ = 254255760.

The previous prime is 306345551. The next prime is 306345653. The reversal of 306345641 is 146543603.

It is a cyclic number.

It is not a de Polignac number, because 306345641 - 2¹⁸ = 306083497 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 306345598 and 306345607.

It is not an unprimeable number, because it can be changed into a prime (306345841) 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, 22136 + ... + 33206.

It is an arithmetic number, because the mean of its divisors is an integer number (22586880).

Almost surely, 2^306345641 is an apocalyptic number.

It is an amenable number.

306345641 is a deficient number, since it is larger than the sum of its proper divisors (55044439).

306345641 is a wasteful number, since it uses less digits than its factorization.

306345641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11204.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 306345641 is about 17502.7323866875. The cubic root of 306345641 is about 674.1200355908.

The spelling of 306345641 in words is "three hundred six million, three hundred forty-five thousand, six hundred forty-one".