4081896 has 144 divisors (see below), whose sum is σ = 14004900. Its totient is φ = 1064448.

The previous prime is 4081871. The next prime is 4081897. The reversal of 4081896 is 6981804.

It is a happy number.

4081896 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3572100 + 509796 = 1890^2 + 714^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 4081896.

It is not an unprimeable number, because it can be changed into a prime (4081897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 45820 + ... + 45908.

Almost surely, 2^4081896 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 4081896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7002450).

4081896 is an abundant number, since it is smaller than the sum of its proper divisors (9923004).

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

4081896 is a wasteful number, since it uses less digits than its factorization.

4081896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128 (or 114 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 4081896 is about 2020.3702630954. The cubic root of 4081896 is about 159.8161429763.

It can be divided in two parts, 408 and 1896, that added together give a square (2304 = 48²).

The spelling of 4081896 in words is "four million, eighty-one thousand, eight hundred ninety-six".