7229224 has 16 divisors (see below), whose sum is σ = 13583700. Its totient is φ = 3606912.

The previous prime is 7229219. The next prime is 7229239. The reversal of 7229224 is 4229227.

It can be written as a sum of positive squares in 2 ways, for example, as 7193124 + 36100 = 2682^2 + 190^2 .

It is a junction number, because it is equal to n+sod(n) for n = 7229192 and 7229201.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5914 + ... + 7030.

Almost surely, 2^7229224 is an apocalyptic number.

It is an amenable number.

7229224 is a deficient number, since it is larger than the sum of its proper divisors (6354476).

7229224 is a wasteful number, since it uses less digits than its factorization.

7229224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1932 (or 1928 counting only the distinct ones).

The product of its digits is 4032, while the sum is 28.

The square root of 7229224 is about 2688.7216293250. The cubic root of 7229224 is about 193.3587785244.

The spelling of 7229224 in words is "seven million, two hundred twenty-nine thousand, two hundred twenty-four".