7253728 has 24 divisors (see below), whose sum is σ = 14341320. Its totient is φ = 3611520.

The previous prime is 7253723. The next prime is 7253773. The reversal of 7253728 is 8273527.

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

It is a junction number, because it is equal to n+sod(n) for n = 7253693 and 7253702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7253723) by changing a digit.

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, 13138 + ... + 13678.

It is an arithmetic number, because the mean of its divisors is an integer number (597555).

Almost surely, 2^7253728 is an apocalyptic number.

It is an amenable number.

7253728 is a deficient number, since it is larger than the sum of its proper divisors (7087592).

7253728 is a wasteful number, since it uses less digits than its factorization.

7253728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970 (or 962 counting only the distinct ones).

The product of its digits is 23520, while the sum is 34.

The square root of 7253728 is about 2693.2745868181. The cubic root of 7253728 is about 193.5770002047.

The spelling of 7253728 in words is "seven million, two hundred fifty-three thousand, seven hundred twenty-eight".