4082081 has 4 divisors (see below), whose sum is σ = 4094532. Its totient is φ = 4069632.

The previous prime is 4082053. The next prime is 4082101. The reversal of 4082081 is 1802804.

4082081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1175056 + 2907025 = 1084^2 + 1705^2 .

It is a cyclic number.

It is not a de Polignac number, because 4082081 - 2¹⁴ = 4065697 is a prime.

It is a super-2 number, since 2×4082081² = 33326770581122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4082021) 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 3 ways as a sum of consecutive naturals, for example, 5720 + ... + 6393.

It is an arithmetic number, because the mean of its divisors is an integer number (1023633).

Almost surely, 2^4082081 is an apocalyptic number.

It is an amenable number.

4082081 is a deficient number, since it is larger than the sum of its proper divisors (12451).

4082081 is a wasteful number, since it uses less digits than its factorization.

4082081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12450.

The product of its (nonzero) digits is 512, while the sum is 23.

The square root of 4082081 is about 2020.4160462637. The cubic root of 4082081 is about 159.8185573396.

Adding to 4082081 its reverse (1802804), we get a palindrome (5884885).

The spelling of 4082081 in words is "four million, eighty-two thousand, eighty-one".