4406728066 has 72 divisors (see below), whose sum is σ = 7675448220. Its totient is φ = 1896201216.

The previous prime is 4406728013. The next prime is 4406728069. The reversal of 4406728066 is 6608276044.

It can be written as a sum of positive squares in 18 ways, for example, as 962798841 + 3443929225 = 31029^2 + 58685^2 .

It is not an unprimeable number, because it can be changed into a prime (4406728069) 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 35 ways as a sum of consecutive naturals, for example, 19243240 + ... + 19243468.

Almost surely, 2^4406728066 is an apocalyptic number.

4406728066 is a deficient number, since it is larger than the sum of its proper divisors (3268720154).

4406728066 is a wasteful number, since it uses less digits than its factorization.

4406728066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488 (or 458 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 43.

The square root of 4406728066 is about 66383.1911405289. The cubic root of 4406728066 is about 1639.4773351805.

The spelling of 4406728066 in words is "four billion, four hundred six million, seven hundred twenty-eight thousand, sixty-six".