3440440240 has 20 divisors (see below), whose sum is σ = 7999023744. Its totient is φ = 1376176064.

The previous prime is 3440440193. The next prime is 3440440243. The reversal of 3440440240 is 420440443.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×3440440240² = 23673258090022515200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3440440243) 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, 21502672 + ... + 21502831.

Almost surely, 2^3440440240 is an apocalyptic number.

It is an amenable number.

3440440240 is an abundant number, since it is smaller than the sum of its proper divisors (4558583504).

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

3440440240 is a wasteful number, since it uses less digits than its factorization.

3440440240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43005516 (or 43005510 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 25.

The square root of 3440440240 is about 58655.2660892439. The cubic root of 3440440240 is about 1509.6328566630.

Adding to 3440440240 its reverse (420440443), we get a palindrome (3860880683).

The spelling of 3440440240 in words is "three billion, four hundred forty million, four hundred forty thousand, two hundred forty".