4500728 has 8 divisors (see below), whose sum is σ = 8438880. Its totient is φ = 2250360.

The previous prime is 4500721. The next prime is 4500731. The reversal of 4500728 is 8270054.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 4500697 and 4500706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4500721) 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 as a sum of consecutive naturals, namely, 281288 + ... + 281303.

It is an arithmetic number, because the mean of its divisors is an integer number (1054860).

Almost surely, 2^4500728 is an apocalyptic number.

It is an amenable number.

4500728 is a deficient number, since it is larger than the sum of its proper divisors (3938152).

4500728 is a wasteful number, since it uses less digits than its factorization.

4500728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562597 (or 562593 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 4500728 is about 2121.4919278659. The cubic root of 4500728 is about 165.1052649389.

The spelling of 4500728 in words is "four million, five hundred thousand, seven hundred twenty-eight".