2728283730 has 64 divisors (see below), whose sum is σ = 6714109440. Its totient is φ = 709197824.

The previous prime is 2728283699. The next prime is 2728283773. The reversal of 2728283730 is 373828272.

It is a super-2 number, since 2×2728283730² = 14887064222765425800, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 358606 + ... + 366134.

It is an arithmetic number, because the mean of its divisors is an integer number (104907960).

Almost surely, 2^2728283730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2728283730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3357054720).

2728283730 is an abundant number, since it is smaller than the sum of its proper divisors (3985825710).

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

2728283730 is a wasteful number, since it uses less digits than its factorization.

2728283730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7843.

The product of its (nonzero) digits is 225792, while the sum is 42.

The square root of 2728283730 is about 52232.9755039860. The cubic root of 2728283730 is about 1397.3220457758.

The spelling of 2728283730 in words is "two billion, seven hundred twenty-eight million, two hundred eighty-three thousand, seven hundred thirty".