404541 has 8 divisors (see below), whose sum is σ = 599360. Its totient is φ = 269676.

The previous prime is 404539. The next prime is 404557. The reversal of 404541 is 145404.

It is not a de Polignac number, because 404541 - 2¹ = 404539 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 (404531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7465 + ... + 7518.

It is an arithmetic number, because the mean of its divisors is an integer number (74920).

2⁴⁰⁴⁵⁴¹ is an apocalyptic number.

It is an amenable number.

404541 is a deficient number, since it is larger than the sum of its proper divisors (194819).

404541 is a wasteful number, since it uses less digits than its factorization.

404541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14992 (or 14986 counting only the distinct ones).

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

The square root of 404541 is about 636.0353763746. The cubic root of 404541 is about 73.9584012607.

Adding to 404541 its reverse (145404), we get a palindrome (549945).

The spelling of 404541 in words is "four hundred four thousand, five hundred forty-one".