2728555432 has 8 divisors (see below), whose sum is σ = 5116041450. Its totient is φ = 1364277712.

The previous prime is 2728555429. The next prime is 2728555433. The reversal of 2728555432 is 2345558272.

It can be written as a sum of positive squares in only one way, i.e., 1945339236 + 783216196 = 44106^2 + 27986^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (2728555433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170534707 + ... + 170534722.

Almost surely, 2^2728555432 is an apocalyptic number.

It is an amenable number.

2728555432 is a deficient number, since it is larger than the sum of its proper divisors (2387486018).

2728555432 is a wasteful number, since it uses less digits than its factorization.

2728555432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341069435 (or 341069431 counting only the distinct ones).

The product of its digits is 672000, while the sum is 43.

The square root of 2728555432 is about 52235.5763058091. The cubic root of 2728555432 is about 1397.3684293426.

The spelling of 2728555432 in words is "two billion, seven hundred twenty-eight million, five hundred fifty-five thousand, four hundred thirty-two".