2728584018 has 36 divisors (see below), whose sum is σ = 6076087290. Its totient is φ = 884938176.

The previous prime is 2728584017. The next prime is 2728584059. The reversal of 2728584018 is 8104858272.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 2607429969 + 121154049 = 51063^2 + 11007^2 .

It is not an unprimeable number, because it can be changed into a prime (2728584017) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 30723 + ... + 80006.

Almost surely, 2^2728584018 is an apocalyptic number.

2728584018 is an abundant number, since it is smaller than the sum of its proper divisors (3347503272).

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

2728584018 is a wasteful number, since it uses less digits than its factorization.

2728584018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110811 (or 110771 counting only the distinct ones).

The product of its (nonzero) digits is 286720, while the sum is 45.

The square root of 2728584018 is about 52235.8499308664. The cubic root of 2728584018 is about 1397.3733092184.

The spelling of 2728584018 in words is "two billion, seven hundred twenty-eight million, five hundred eighty-four thousand, eighteen".