404104231 has 4 divisors (see below), whose sum is σ = 408270352. Its totient is φ = 399938112.

The previous prime is 404104219. The next prime is 404104243. The reversal of 404104231 is 132401404.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (404104219) and next prime (404104243).

It is a cyclic number.

It is not a de Polignac number, because 404104231 - 2²³ = 395715623 is a prime.

It is a super-3 number, since 3×404104231³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 404104199 and 404104208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404104271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2082915 + ... + 2083108.

It is an arithmetic number, because the mean of its divisors is an integer number (102067588).

Almost surely, 2^404104231 is an apocalyptic number.

404104231 is a deficient number, since it is larger than the sum of its proper divisors (4166121).

404104231 is an equidigital number, since it uses as much as digits as its factorization.

404104231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4166120.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 404104231 is about 20102.3439180609. The cubic root of 404104231 is about 739.3177489542.

Adding to 404104231 its reverse (132401404), we get a palindrome (536505635).

The spelling of 404104231 in words is "four hundred four million, one hundred four thousand, two hundred thirty-one".