404340404131 has 8 divisors (see below), whose sum is σ = 404545137920. Its totient is φ = 404135724168.

The previous prime is 404340404129. The next prime is 404340404161. The reversal of 404340404131 is 131404043404.

It is a happy number.

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 404340404131 - 2¹ = 404340404129 is a prime.

It is a super-2 number, since 2×404340404131² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 404340404131.

It is not an unprimeable number, because it can be changed into a prime (404340404161) 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, 26616520 + ... + 26631706.

It is an arithmetic number, because the mean of its divisors is an integer number (50568142240).

Almost surely, 2^404340404131 is an apocalyptic number.

404340404131 is a deficient number, since it is larger than the sum of its proper divisors (204733789).

404340404131 is a wasteful number, since it uses less digits than its factorization.

404340404131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26913.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 404340404131 its reverse (131404043404), we get a palindrome (535744447535).

The spelling of 404340404131 in words is "four hundred four billion, three hundred forty million, four hundred four thousand, one hundred thirty-one".