7208224 has 12 divisors (see below), whose sum is σ = 14191254. Its totient is φ = 3604096.

The previous prime is 7208209. The next prime is 7208281. The reversal of 7208224 is 4228027.

It can be written as a sum of positive squares in only one way, i.e., 7118224 + 90000 = 2668^2 + 300^2 .

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112597 + ... + 112660.

Almost surely, 2^7208224 is an apocalyptic number.

It is an amenable number.

7208224 is a deficient number, since it is larger than the sum of its proper divisors (6983030).

7208224 is a wasteful number, since it uses less digits than its factorization.

7208224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225267 (or 225259 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 7208224 is about 2684.8135875699. The cubic root of 7208224 is about 193.1713691754.

The spelling of 7208224 in words is "seven million, two hundred eight thousand, two hundred twenty-four".