4365728 has 12 divisors (see below), whose sum is σ = 8595090. Its totient is φ = 2182848.

The previous prime is 4365727. The next prime is 4365731. The reversal of 4365728 is 8275634.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 3341584 + 1024144 = 1828^2 + 1012^2 .

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (4365727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68183 + ... + 68246.

Almost surely, 2^4365728 is an apocalyptic number.

It is an amenable number.

4365728 is a deficient number, since it is larger than the sum of its proper divisors (4229362).

4365728 is a wasteful number, since it uses less digits than its factorization.

4365728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136439 (or 136431 counting only the distinct ones).

The product of its digits is 40320, while the sum is 35.

The square root of 4365728 is about 2089.4324588270. The cubic root of 4365728 is about 163.4376934984.

The spelling of 4365728 in words is "four million, three hundred sixty-five thousand, seven hundred twenty-eight".