4163840256 has 36 divisors (see below), whose sum is σ = 11081889392. Its totient is φ = 1387946496.

The previous prime is 4163840231. The next prime is 4163840257. The reversal of 4163840256 is 6520483614.

It is a super-2 number, since 2×4163840256² = 34675131354972291072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4163840257) by changing a digit.

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, 2710066 + ... + 2711601.

Almost surely, 2^4163840256 is an apocalyptic number.

It is an amenable number.

4163840256 is an abundant number, since it is smaller than the sum of its proper divisors (6918049136).

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

4163840256 is an equidigital number, since it uses as much as digits as its factorization.

4163840256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5421686 (or 5421672 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 39.

The square root of 4163840256 is about 64527.8254398829. The cubic root of 4163840256 is about 1608.7850427747.

The spelling of 4163840256 in words is "four billion, one hundred sixty-three million, eight hundred forty thousand, two hundred fifty-six".