7225628 has 6 divisors (see below), whose sum is σ = 12644856. Its totient is φ = 3612812.

The previous prime is 7225607. The next prime is 7225651. The reversal of 7225628 is 8265227.

It is a junction number, because it is equal to n+sod(n) for n = 7225594 and 7225603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 903200 + ... + 903207.

It is an arithmetic number, because the mean of its divisors is an integer number (2107476).

Almost surely, 2^7225628 is an apocalyptic number.

It is an amenable number.

7225628 is a deficient number, since it is larger than the sum of its proper divisors (5419228).

7225628 is a wasteful number, since it uses less digits than its factorization.

7225628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1806411 (or 1806409 counting only the distinct ones).

The product of its digits is 13440, while the sum is 32.

The square root of 7225628 is about 2688.0528268619. The cubic root of 7225628 is about 193.3267126812.

The spelling of 7225628 in words is "seven million, two hundred twenty-five thousand, six hundred twenty-eight".