4021084864 has 56 divisors (see below), whose sum is σ = 8231731568. Its totient is φ = 1947939840.

The previous prime is 4021084841. The next prime is 4021084867. The reversal of 4021084864 is 4684801204.

It is not an unprimeable number, because it can be changed into a prime (4021084867) 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 7 ways as a sum of consecutive naturals, for example, 253882 + ... + 269254.

Almost surely, 2^4021084864 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 4021084864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4115865784).

4021084864 is an abundant number, since it is smaller than the sum of its proper divisors (4210646704).

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

4021084864 is a wasteful number, since it uses less digits than its factorization.

4021084864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15513 (or 15503 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 37.

The square root of 4021084864 is about 63412.0246010171. The cubic root of 4021084864 is about 1590.1853434244.

The spelling of 4021084864 in words is "four billion, twenty-one million, eighty-four thousand, eight hundred sixty-four".