3224640 has 56 divisors (see below), whose sum is σ = 10241280. Its totient is φ = 859648.

The previous prime is 3224593. The next prime is 3224647. The reversal of 3224640 is 464223.

It is not an unprimeable number, because it can be changed into a prime (3224647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 720 + ... + 2639.

It is an arithmetic number, because the mean of its divisors is an integer number (182880).

Almost surely, 2^3224640 is an apocalyptic number.

3224640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3224640 is an abundant number, since it is smaller than the sum of its proper divisors (7016640).

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

3224640 is a wasteful number, since it uses less digits than its factorization.

3224640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3379 (or 3369 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 3224640 is about 1795.7282645211. The cubic root of 3224640 is about 147.7385205278.

Adding to 3224640 its reverse (464223), we get a palindrome (3688863).

The spelling of 3224640 in words is "three million, two hundred twenty-four thousand, six hundred forty".