4002646056 has 128 divisors (see below), whose sum is σ = 10889873280. Its totient is φ = 1221083136.

The previous prime is 4002646031. The next prime is 4002646057. The reversal of 4002646056 is 6506462004.

It is a super-2 number, since 2×4002646056² = 32042350899224710272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4002646057) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5911990 + ... + 5912666.

It is an arithmetic number, because the mean of its divisors is an integer number (85077135).

Almost surely, 2^4002646056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4002646056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5444936640).

4002646056 is an abundant number, since it is smaller than the sum of its proper divisors (6887227224).

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

4002646056 is a wasteful number, since it uses less digits than its factorization.

4002646056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1083 (or 1079 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 4002646056 is about 63266.4686544144. The cubic root of 4002646056 is about 1587.7510041533.

The spelling of 4002646056 in words is "four billion, two million, six hundred forty-six thousand, fifty-six".