404413 has 4 divisors (see below), whose sum is σ = 428220. Its totient is φ = 380608.

The previous prime is 404399. The next prime is 404419. The reversal of 404413 is 314404.

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 190969 + 213444 = 437^2 + 462^2 .

It is a cyclic number.

It is not a de Polignac number, because 404413 - 2⁵ = 404381 is a prime.

It is a Duffinian number.

404413 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404419) 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, 11878 + ... + 11911.

It is an arithmetic number, because the mean of its divisors is an integer number (107055).

2⁴⁰⁴⁴¹³ is an apocalyptic number.

It is an amenable number.

404413 is a deficient number, since it is larger than the sum of its proper divisors (23807).

404413 is a wasteful number, since it uses less digits than its factorization.

404413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23806.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 404413 is about 635.9347450800. The cubic root of 404413 is about 73.9506000951.

Adding to 404413 its reverse (314404), we get a palindrome (718817).

Subtracting from 404413 its reverse (314404), we obtain a palindrome (90009).

The spelling of 404413 in words is "four hundred four thousand, four hundred thirteen".