3240561 has 8 divisors (see below), whose sum is σ = 4329280. Its totient is φ = 2156112.

The previous prime is 3240553. The next prime is 3240577. The reversal of 3240561 is 1650423.

It is a happy number.

3240561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3240561 - 2³ = 3240553 is a prime.

It is an Ulam number.

It is a Duffinian number.

3240561 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3240551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1836 + ... + 3138.

It is an arithmetic number, because the mean of its divisors is an integer number (541160).

Almost surely, 2^3240561 is an apocalyptic number.

It is an amenable number.

3240561 is a deficient number, since it is larger than the sum of its proper divisors (1088719).

3240561 is a wasteful number, since it uses less digits than its factorization.

3240561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2135.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 3240561 is about 1800.1558265884. The cubic root of 3240561 is about 147.9812643680.

Adding to 3240561 its reverse (1650423), we get a palindrome (4890984).

The spelling of 3240561 in words is "three million, two hundred forty thousand, five hundred sixty-one".