7223430 has 48 divisors (see below), whose sum is σ = 17875440. Its totient is φ = 1867968.

The previous prime is 7223417. The next prime is 7223443. The reversal of 7223430 is 343227.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (7223417) and next prime (7223443).

It is a junction number, because it is equal to n+sod(n) for n = 7223397 and 7223406.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66216 + ... + 66324.

It is an arithmetic number, because the mean of its divisors is an integer number (372405).

Almost surely, 2^7223430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7223430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8937720).

7223430 is an abundant number, since it is smaller than the sum of its proper divisors (10652010).

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

7223430 is a wasteful number, since it uses less digits than its factorization.

7223430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213 (or 166 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 21.

The square root of 7223430 is about 2687.6439496332. The cubic root of 7223430 is about 193.3071076859.

Adding to 7223430 its reverse (343227), we get a palindrome (7566657).

The spelling of 7223430 in words is "seven million, two hundred twenty-three thousand, four hundred thirty".