4405481 has 4 divisors (see below), whose sum is σ = 4477764. Its totient is φ = 4333200.

The previous prime is 4405459. The next prime is 4405493. The reversal of 4405481 is 1845044.

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 469225 + 3936256 = 685^2 + 1984^2 .

It is a cyclic number.

It is not a de Polignac number, because 4405481 - 2⁶ = 4405417 is a prime.

It is a super-2 number, since 2×4405481² = 38816525682722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4405481.

It is not an unprimeable number, because it can be changed into a prime (4405421) 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, 36050 + ... + 36171.

It is an arithmetic number, because the mean of its divisors is an integer number (1119441).

Almost surely, 2^4405481 is an apocalyptic number.

It is an amenable number.

4405481 is a deficient number, since it is larger than the sum of its proper divisors (72283).

4405481 is an equidigital number, since it uses as much as digits as its factorization.

4405481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72282.

The product of its (nonzero) digits is 2560, while the sum is 26.

The square root of 4405481 is about 2098.9237718412. The cubic root of 4405481 is about 163.9322667946.

The spelling of 4405481 in words is "four million, four hundred five thousand, four hundred eighty-one".