7123228 has 18 divisors (see below), whose sum is σ = 14501256. Its totient is φ = 3052728.

The previous prime is 7123223. The next prime is 7123229. The reversal of 7123228 is 8223217.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7123223) 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 5 ways as a sum of consecutive naturals, for example, 17976 + ... + 18367.

Almost surely, 2^7123228 is an apocalyptic number.

It is an amenable number.

7123228 is an abundant number, since it is smaller than the sum of its proper divisors (7378028).

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

7123228 is a wasteful number, since it uses less digits than its factorization.

7123228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36361 (or 36352 counting only the distinct ones).

The product of its digits is 1344, while the sum is 25.

The square root of 7123228 is about 2668.9376163560. The cubic root of 7123228 is about 192.4091030915.

The spelling of 7123228 in words is "seven million, one hundred twenty-three thousand, two hundred twenty-eight".