7223424 has 64 divisors (see below), whose sum is σ = 20677440. Its totient is φ = 2221056.

The previous prime is 7223417. The next prime is 7223443. The reversal of 7223424 is 4243227.

It is a tau number, because it is divible by the number of its divisors (64).

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 = 7223394 and 7223403.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4269 + ... + 5715.

It is an arithmetic number, because the mean of its divisors is an integer number (323085).

Almost surely, 2^7223424 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 7223424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10338720).

7223424 is an abundant number, since it is smaller than the sum of its proper divisors (13454016).

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

7223424 is a wasteful number, since it uses less digits than its factorization.

7223424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1477 (or 1465 counting only the distinct ones).

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

The square root of 7223424 is about 2687.6428334137. The cubic root of 7223424 is about 193.3070541636.

The spelling of 7223424 in words is "seven million, two hundred twenty-three thousand, four hundred twenty-four".