4005056 has 28 divisors (see below), whose sum is σ = 8671560. Its totient is φ = 1820160.

The previous prime is 4005049. The next prime is 4005091. The reversal of 4005056 is 6505004.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2141 + ... + 3548.

Almost surely, 2^4005056 is an apocalyptic number.

It is an amenable number.

4005056 is an abundant number, since it is smaller than the sum of its proper divisors (4666504).

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

4005056 is a wasteful number, since it uses less digits than its factorization.

4005056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5712 (or 5702 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 4005056 is about 2001.2636008282. The cubic root of 4005056 is about 158.8069595344.

The spelling of 4005056 in words is "four million, five thousand, fifty-six".