4408081 has 4 divisors (see below), whose sum is σ = 4457700. Its totient is φ = 4358464.

The previous prime is 4408073. The next prime is 4408093. The reversal of 4408081 is 1808044.

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 467856 + 3940225 = 684^2 + 1985^2 .

It is a cyclic number.

It is not a de Polignac number, because 4408081 - 2³ = 4408073 is a prime.

It is a super-2 number, since 2×4408081² = 38862356205122, which contains 22 as substring.

It is a Duffinian number.

4408081 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4408031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24676 + ... + 24853.

It is an arithmetic number, because the mean of its divisors is an integer number (1114425).

Almost surely, 2^4408081 is an apocalyptic number.

It is an amenable number.

4408081 is a deficient number, since it is larger than the sum of its proper divisors (49619).

4408081 is an equidigital number, since it uses as much as digits as its factorization.

4408081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49618.

The product of its (nonzero) digits is 1024, while the sum is 25.

The square root of 4408081 is about 2099.5430455220. The cubic root of 4408081 is about 163.9645099686.

The spelling of 4408081 in words is "four million, four hundred eight thousand, eighty-one".