6618224 has 20 divisors (see below), whose sum is σ = 12927744. Its totient is φ = 3282048.

The previous prime is 6618223. The next prime is 6618229. The reversal of 6618224 is 4228166.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6618223) 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, 404 + ... + 3660.

Almost surely, 2^6618224 is an apocalyptic number.

It is an amenable number.

6618224 is a deficient number, since it is larger than the sum of its proper divisors (6309520).

6618224 is a wasteful number, since it uses less digits than its factorization.

6618224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3392 (or 3386 counting only the distinct ones).

The product of its digits is 4608, while the sum is 29.

The square root of 6618224 is about 2572.5909119019. The cubic root of 6618224 is about 187.7502341896.

The spelling of 6618224 in words is "six million, six hundred eighteen thousand, two hundred twenty-four".