324642561 has 16 divisors (see below), whose sum is σ = 444026880. Its totient is φ = 210868560.

The previous prime is 324642499. The next prime is 324642589. The reversal of 324642561 is 165246423.

It is not a de Polignac number, because 324642561 - 2⁹ = 324642049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (324641561) 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, 52680 + ... + 58518.

It is an arithmetic number, because the mean of its divisors is an integer number (27751680).

Almost surely, 2^324642561 is an apocalyptic number.

It is an amenable number.

324642561 is a deficient number, since it is larger than the sum of its proper divisors (119384319).

324642561 is a wasteful number, since it uses less digits than its factorization.

324642561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6316.

The product of its digits is 34560, while the sum is 33.

The square root of 324642561 is about 18017.8400758803. The cubic root of 324642561 is about 687.2822881329.

Adding to 324642561 its reverse (165246423), we get a palindrome (489888984).

The spelling of 324642561 in words is "three hundred twenty-four million, six hundred forty-two thousand, five hundred sixty-one".