7224928 has 12 divisors (see below), whose sum is σ = 14224140. Its totient is φ = 3612448.

The previous prime is 7224923. The next prime is 7224937. The reversal of 7224928 is 8294227.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a d-powerful number, because it can be written as 7⁵ + 2¹⁶ + 2¹⁸ + 4⁴ + 9⁷ + 2²¹ + 8² .

It is a junction number, because it is equal to n+sod(n) for n = 7224893 and 7224902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7224923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112858 + ... + 112921.

It is an arithmetic number, because the mean of its divisors is an integer number (1185345).

Almost surely, 2^7224928 is an apocalyptic number.

It is an amenable number.

7224928 is a deficient number, since it is larger than the sum of its proper divisors (6999212).

7224928 is a wasteful number, since it uses less digits than its factorization.

7224928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225789 (or 225781 counting only the distinct ones).

The product of its digits is 16128, while the sum is 34.

The square root of 7224928 is about 2687.9226179338. The cubic root of 7224928 is about 193.3204694836.

It can be divided in two parts, 722492 and 8, that added together give a square (722500 = 850²).

The spelling of 7224928 in words is "seven million, two hundred twenty-four thousand, nine hundred twenty-eight".