404334312231 has 8 divisors (see below), whose sum is σ = 539230946800. Its totient is φ = 269496942912.

The previous prime is 404334312223. The next prime is 404334312257. The reversal of 404334312231 is 132213433404.

It is a happy number.

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

It is not a de Polignac number, because 404334312231 - 2³ = 404334312223 is a prime.

It is a super-2 number, since 2×404334312231² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404334312281) 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, 14800390 + ... + 14827683.

It is an arithmetic number, because the mean of its divisors is an integer number (67403868350).

Almost surely, 2^404334312231 is an apocalyptic number.

404334312231 is a deficient number, since it is larger than the sum of its proper divisors (134896634569).

404334312231 is a wasteful number, since it uses less digits than its factorization.

404334312231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29632625.

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 404334312231 its reverse (132213433404), we get a palindrome (536547745635).

The spelling of 404334312231 in words is "four hundred four billion, three hundred thirty-four million, three hundred twelve thousand, two hundred thirty-one".