441405 has 24 divisors (see below), whose sum is σ = 811512. Its totient is φ = 221184.

The previous prime is 441403. The next prime is 441421. The reversal of 441405 is 504144.

It can be written as a sum of positive squares in 4 ways, for example, as 236196 + 205209 = 486^2 + 453^2 .

It is not a de Polignac number, because 441405 - 2¹ = 441403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (441403) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 477 + ... + 1053.

It is an arithmetic number, because the mean of its divisors is an integer number (33813).

2⁴⁴¹⁴⁰⁵ is an apocalyptic number.

441405 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

441405 is a deficient number, since it is larger than the sum of its proper divisors (370107).

441405 is a wasteful number, since it uses less digits than its factorization.

441405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605 (or 602 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 441405 is about 664.3831725744. The cubic root of 441405 is about 76.1399199889.

Adding to 441405 its reverse (504144), we get a palindrome (945549).

The spelling of 441405 in words is "four hundred forty-one thousand, four hundred five".