3244145440 has 24 divisors (see below), whose sum is σ = 7664293980. Its totient is φ = 1297658112.

The previous prime is 3244145417. The next prime is 3244145441. The reversal of 3244145440 is 445414423.

It can be written as a sum of positive squares in 2 ways, for example, as 3012253456 + 231891984 = 54884^2 + 15228^2 .

It is not an unprimeable number, because it can be changed into a prime (3244145441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10137795 + ... + 10138114.

Almost surely, 2^3244145440 is an apocalyptic number.

It is an amenable number.

3244145440 is an abundant number, since it is smaller than the sum of its proper divisors (4420148540).

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

3244145440 is a wasteful number, since it uses less digits than its factorization.

3244145440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20275924 (or 20275916 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 31.

The square root of 3244145440 is about 56957.4002215691. The cubic root of 3244145440 is about 1480.3580579988.

Adding to 3244145440 its reverse (445414423), we get a palindrome (3689559863).

The spelling of 3244145440 in words is "three billion, two hundred forty-four million, one hundred forty-five thousand, four hundred forty".