3224240 has 40 divisors (see below), whose sum is σ = 7687008. Its totient is φ = 1256960.

The previous prime is 3224239. The next prime is 3224251. The reversal of 3224240 is 424223.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2789 + ... + 3771.

Almost surely, 2^3224240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3224240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3843504).

3224240 is an abundant number, since it is smaller than the sum of its proper divisors (4462768).

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

3224240 is a wasteful number, since it uses less digits than its factorization.

3224240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1037 (or 1031 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 3224240 is about 1795.6168856413. The cubic root of 3224240 is about 147.7324115408.

Subtracting from 3224240 its sum of digits (17), we obtain a palindrome (3224223).

Adding to 3224240 its reverse (424223), we get a palindrome (3648463).

The spelling of 3224240 in words is "three million, two hundred twenty-four thousand, two hundred forty".