7245228 has 12 divisors (see below), whose sum is σ = 16905560. Its totient is φ = 2415072.

The previous prime is 7245209. The next prime is 7245239. The reversal of 7245228 is 8225427.

It is a tau number, because it is divible by the number of its divisors (12).

It is a d-powerful number, because it can be written as 7 + 2¹⁵ + 4⁷ + 5⁹ + 2²⁰ + 2²² + 8² .

It is a junction number, because it is equal to n+sod(n) for n = 7245195 and 7245204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 301873 + ... + 301896.

Almost surely, 2^7245228 is an apocalyptic number.

It is an amenable number.

7245228 is an abundant number, since it is smaller than the sum of its proper divisors (9660332).

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

7245228 is a wasteful number, since it uses less digits than its factorization.

7245228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603776 (or 603774 counting only the distinct ones).

The product of its digits is 8960, while the sum is 30.

The square root of 7245228 is about 2691.6961195499. The cubic root of 7245228 is about 193.5013587496.

The spelling of 7245228 in words is "seven million, two hundred forty-five thousand, two hundred twenty-eight".