3565285728 has 24 divisors (see below), whose sum is σ = 9358875288. Its totient is φ = 1188428544.

The previous prime is 3565285697. The next prime is 3565285733. The reversal of 3565285728 is 8275825653.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×3565285728² = 25422524644560979968, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18569101 + ... + 18569292.

It is an arithmetic number, because the mean of its divisors is an integer number (389953137).

Almost surely, 2^3565285728 is an apocalyptic number.

It is an amenable number.

3565285728 is an abundant number, since it is smaller than the sum of its proper divisors (5793589560).

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

3565285728 is a wasteful number, since it uses less digits than its factorization.

3565285728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37138406 (or 37138398 counting only the distinct ones).

The product of its digits is 4032000, while the sum is 51.

The square root of 3565285728 is about 59710.0136325558. The cubic root of 3565285728 is about 1527.6766719916.

The spelling of 3565285728 in words is "three billion, five hundred sixty-five million, two hundred eighty-five thousand, seven hundred twenty-eight".