4181856 has 96 divisors (see below), whose sum is σ = 12902400. Its totient is φ = 1185408.

The previous prime is 4181839. The next prime is 4181857. The reversal of 4181856 is 6581814.

4181856 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4181857) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32865 + ... + 32991.

It is an arithmetic number, because the mean of its divisors is an integer number (134400).

Almost surely, 2^4181856 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 4181856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6451200).

4181856 is an abundant number, since it is smaller than the sum of its proper divisors (8720544).

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

4181856 is a wasteful number, since it uses less digits than its factorization.

4181856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161 (or 139 counting only the distinct ones).

The product of its digits is 7680, while the sum is 33.

The square root of 4181856 is about 2044.9586792891. The cubic root of 4181856 is about 161.1101955116.

The spelling of 4181856 in words is "four million, one hundred eighty-one thousand, eight hundred fifty-six".