2728437328 has 20 divisors (see below), whose sum is σ = 5301505300. Its totient is φ = 1360306944.

The previous prime is 2728437323. The next prime is 2728437343. The reversal of 2728437328 is 8237348272.

It can be written as a sum of positive squares in 2 ways, for example, as 2524861504 + 203575824 = 50248^2 + 14268^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2728437323) 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 in 3 ways as a sum of consecutive naturals, for example, 238725 + ... + 249892.

It is an arithmetic number, because the mean of its divisors is an integer number (265075265).

Almost surely, 2^2728437328 is an apocalyptic number.

It is an amenable number.

2728437328 is a deficient number, since it is larger than the sum of its proper divisors (2573067972).

2728437328 is a wasteful number, since it uses less digits than its factorization.

2728437328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488974 (or 488968 counting only the distinct ones).

The product of its digits is 903168, while the sum is 46.

The square root of 2728437328 is about 52234.4457996828. The cubic root of 2728437328 is about 1397.3482676141.

The spelling of 2728437328 in words is "two billion, seven hundred twenty-eight million, four hundred thirty-seven thousand, three hundred twenty-eight".