2728243692 has 36 divisors (see below), whose sum is σ = 7082786256. Its totient is φ = 884835360.

The previous prime is 2728243681. The next prime is 2728243697. The reversal of 2728243692 is 2963428272.

2728243692 is a `hidden beast` number, since 2 + 7 + 282 + 4 + 369 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (2728243697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1022784 + ... + 1025447.

Almost surely, 2^2728243692 is an apocalyptic number.

It is an amenable number.

2728243692 is an abundant number, since it is smaller than the sum of its proper divisors (4354542564).

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

2728243692 is a wasteful number, since it uses less digits than its factorization.

2728243692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2048278 (or 2048273 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 2728243692 is about 52232.5922389460. The cubic root of 2728243692 is about 1397.3152104342.

The spelling of 2728243692 in words is "two billion, seven hundred twenty-eight million, two hundred forty-three thousand, six hundred ninety-two".