2728164042 has 12 divisors (see below), whose sum is σ = 5911022130. Its totient is φ = 909388008.

The previous prime is 2728164041. The next prime is 2728164107. The reversal of 2728164042 is 2404618272.

2728164042 is a `hidden beast` number, since 2 + 7 + 2 + 8 + 1 + 640 + 4 + 2 = 666.

2728164042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2437495641 + 290668401 = 49371^2 + 17049^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2728163988 and 2728164006.

It is not an unprimeable number, because it can be changed into a prime (2728164041) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 75782317 + ... + 75782352.

Almost surely, 2^2728164042 is an apocalyptic number.

2728164042 is an abundant number, since it is smaller than the sum of its proper divisors (3182858088).

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

2728164042 is a wasteful number, since it uses less digits than its factorization.

2728164042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151564677 (or 151564674 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 2728164042 is about 52231.8297784024. The cubic root of 2728164042 is about 1397.3016122795.

The spelling of 2728164042 in words is "two billion, seven hundred twenty-eight million, one hundred sixty-four thousand, forty-two".