7222328 has 32 divisors (see below), whose sum is σ = 13986000. Its totient is φ = 3495168.

The previous prime is 7222321. The next prime is 7222343. The reversal of 7222328 is 8232227.

It is a junction number, because it is equal to n+sod(n) for n = 7222297 and 7222306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7222321) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 48398 + ... + 48546.

Almost surely, 2^7222328 is an apocalyptic number.

It is an amenable number.

7222328 is a deficient number, since it is larger than the sum of its proper divisors (6763672).

7222328 is a wasteful number, since it uses less digits than its factorization.

7222328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311 (or 307 counting only the distinct ones).

The product of its digits is 2688, while the sum is 26.

The square root of 7222328 is about 2687.4389295387. The cubic root of 7222328 is about 193.2972769330.

The spelling of 7222328 in words is "seven million, two hundred twenty-two thousand, three hundred twenty-eight".