3240444 has 12 divisors (see below), whose sum is σ = 7561064. Its totient is φ = 1080144.

The previous prime is 3240409. The next prime is 3240449. The reversal of 3240444 is 4440423.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 3240444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3240449) 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, 135007 + ... + 135030.

Almost surely, 2^3240444 is an apocalyptic number.

It is an amenable number.

3240444 is an abundant number, since it is smaller than the sum of its proper divisors (4320620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3240444 is a wasteful number, since it uses less digits than its factorization.

3240444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270044 (or 270042 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 3240444 is about 1800.1233291083. The cubic root of 3240444 is about 147.9794833990.

Subtracting from 3240444 its sum of digits (21), we obtain a palindrome (3240423).

Adding to 3240444 its reverse (4440423), we get a palindrome (7680867).

The spelling of 3240444 in words is "three million, two hundred forty thousand, four hundred forty-four".