7243224 has 64 divisors (see below), whose sum is σ = 19686240. Its totient is φ = 2211840.

The previous prime is 7243213. The next prime is 7243259. The reversal of 7243224 is 4223427.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 7243194 and 7243203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16512 + ... + 16944.

Almost surely, 2^7243224 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 7243224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9843120).

7243224 is an abundant number, since it is smaller than the sum of its proper divisors (12443016).

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

7243224 is a wasteful number, since it uses less digits than its factorization.

7243224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500 (or 496 counting only the distinct ones).

The product of its digits is 2688, while the sum is 24.

The square root of 7243224 is about 2691.3238378166. The cubic root of 7243224 is about 193.4835165469.

The spelling of 7243224 in words is "seven million, two hundred forty-three thousand, two hundred twenty-four".