4405541 has 6 divisors (see below), whose sum is σ = 5124870. Its totient is φ = 3776136.

The previous prime is 4405523. The next prime is 4405543. The reversal of 4405541 is 1455044.

It can be written as a sum of positive squares in only one way, i.e., 2989441 + 1416100 = 1729^2 + 1190^2 .

It is not a de Polignac number, because 4405541 - 2¹⁸ = 4143397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4405543) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 44906 + ... + 45003.

It is an arithmetic number, because the mean of its divisors is an integer number (854145).

Almost surely, 2^4405541 is an apocalyptic number.

It is an amenable number.

4405541 is a deficient number, since it is larger than the sum of its proper divisors (719329).

4405541 is an equidigital number, since it uses as much as digits as its factorization.

4405541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89923 (or 89916 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 4405541 is about 2098.9380648318. The cubic root of 4405541 is about 163.9330110108.

The spelling of 4405541 in words is "four million, four hundred five thousand, five hundred forty-one".