2728302066 has 72 divisors (see below), whose sum is σ = 6884648784. Its totient is φ = 778584240.

The previous prime is 2728302037. The next prime is 2728302079. The reversal of 2728302066 is 6602038272.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2728302066.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1130401 + ... + 1132811.

It is an arithmetic number, because the mean of its divisors is an integer number (95620122).

Almost surely, 2^2728302066 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2728302066, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3442324392).

2728302066 is an abundant number, since it is smaller than the sum of its proper divisors (4156346718).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2728302066 is a wasteful number, since it uses less digits than its factorization.

2728302066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3716 (or 3706 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 2728302066 is about 52233.1510249956. The cubic root of 2728302066 is about 1397.3251761002.

The spelling of 2728302066 in words is "two billion, seven hundred twenty-eight million, three hundred two thousand, sixty-six".