3220424 has 16 divisors (see below), whose sum is σ = 6356400. Its totient is φ = 1525392.

The previous prime is 3220423. The next prime is 3220433. The reversal of 3220424 is 4240223.

It is a super-2 number, since 2×3220424² = 20742261479552, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3220423) 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, 10442 + ... + 10745.

It is an arithmetic number, because the mean of its divisors is an integer number (397275).

Almost surely, 2^3220424 is an apocalyptic number.

It is an amenable number.

3220424 is a deficient number, since it is larger than the sum of its proper divisors (3135976).

3220424 is a wasteful number, since it uses less digits than its factorization.

3220424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21212 (or 21208 counting only the distinct ones).

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

The square root of 3220424 is about 1794.5539835848. The cubic root of 3220424 is about 147.6741063864.

Adding to 3220424 its reverse (4240223), we get a palindrome (7460647).

The spelling of 3220424 in words is "three million, two hundred twenty thousand, four hundred twenty-four".