4081842 has 12 divisors (see below), whose sum is σ = 8844030. Its totient is φ = 1360608.

The previous prime is 4081813. The next prime is 4081849. The reversal of 4081842 is 2481804.

4081842 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 only one way, i.e., 4004001 + 77841 = 2001^2 + 279^2 .

It is a super-2 number, since 2×4081842² = 33322868225928, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4081849) 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 5 ways as a sum of consecutive naturals, for example, 113367 + ... + 113402.

Almost surely, 2^4081842 is an apocalyptic number.

4081842 is an abundant number, since it is smaller than the sum of its proper divisors (4762188).

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

4081842 is a wasteful number, since it uses less digits than its factorization.

4081842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226777 (or 226774 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

The square root of 4081842 is about 2020.3568991641. The cubic root of 4081842 is about 159.8154382295.

The spelling of 4081842 in words is "four million, eighty-one thousand, eight hundred forty-two".