7214224 has 30 divisors (see below), whose sum is σ = 14763750. Its totient is φ = 3414528.

The previous prime is 7214197. The next prime is 7214257. The reversal of 7214224 is 4224127.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 5914624 + 1299600 = 2432^2 + 1140^2 .

It is a junction number, because it is equal to n+sod(n) for n = 7214195 and 7214204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5152 + ... + 6400.

It is an arithmetic number, because the mean of its divisors is an integer number (492125).

Almost surely, 2^7214224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7214224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7381875).

7214224 is an abundant number, since it is smaller than the sum of its proper divisors (7549526).

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

7214224 is a wasteful number, since it uses less digits than its factorization.

7214224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1295 (or 1270 counting only the distinct ones).

The product of its digits is 896, while the sum is 22.

The square root of 7214224 is about 2685.9307511550. The cubic root of 7214224 is about 193.2249518045.

The spelling of 7214224 in words is "seven million, two hundred fourteen thousand, two hundred twenty-four".