3240022561 has 4 divisors (see below), whose sum is σ = 3240408724. Its totient is φ = 3239636400.

The previous prime is 3240022559. The next prime is 3240022589. The reversal of 3240022561 is 1652200423.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 250000 + 3239772561 = 500^2 + 56919^2 .

It is a cyclic number.

It is not a de Polignac number, because 3240022561 - 2¹ = 3240022559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3240026561) 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 3 ways as a sum of consecutive naturals, for example, 180210 + ... + 197371.

It is an arithmetic number, because the mean of its divisors is an integer number (810102181).

Almost surely, 2^3240022561 is an apocalyptic number.

It is an amenable number.

3240022561 is a deficient number, since it is larger than the sum of its proper divisors (386163).

3240022561 is an equidigital number, since it uses as much as digits as its factorization.

3240022561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386162.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 3240022561 is about 56921.1960608700. The cubic root of 3240022561 is about 1479.7306791712.

Adding to 3240022561 its reverse (1652200423), we get a palindrome (4892222984).

The spelling of 3240022561 in words is "three billion, two hundred forty million, twenty-two thousand, five hundred sixty-one".