4002056 has 8 divisors (see below), whose sum is σ = 7503870. Its totient is φ = 2001024.

The previous prime is 4002049. The next prime is 4002067. The reversal of 4002056 is 6502004.

It can be written as a sum of positive squares in only one way, i.e., 3865156 + 136900 = 1966^2 + 370^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250121 + ... + 250136.

Almost surely, 2^4002056 is an apocalyptic number.

It is an amenable number.

4002056 is a deficient number, since it is larger than the sum of its proper divisors (3501814).

4002056 is a wasteful number, since it uses less digits than its factorization.

4002056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500263 (or 500259 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 4002056 is about 2000.5139339680. The cubic root of 4002056 is about 158.7672980097.

The spelling of 4002056 in words is "four million, two thousand, fifty-six", and thus it is an eban number.