404131 has 8 divisors (see below), whose sum is σ = 497504. Its totient is φ = 319680.

The previous prime is 404123. The next prime is 404161. The reversal of 404131 is 131404.

404131 is nontrivially palindromic in base 2.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 404131 - 2³ = 404123 is a prime.

It is a super-2 number, since 2×404131² = 326643730322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (404161) 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, 2130 + ... + 2311.

It is an arithmetic number, because the mean of its divisors is an integer number (62188).

2⁴⁰⁴¹³¹ is an apocalyptic number.

404131 is a deficient number, since it is larger than the sum of its proper divisors (93373).

404131 is a wasteful number, since it uses less digits than its factorization.

404131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4461.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 404131 is about 635.7129855524. The cubic root of 404131 is about 73.9334073422.

Adding to 404131 its reverse (131404), we get a palindrome (535535).

It can be divided in two parts, 404 and 131, that added together give a palindrome (535).

The spelling of 404131 in words is "four hundred four thousand, one hundred thirty-one".