404552331431 has 8 divisors (see below), whose sum is σ = 410568121728. Its totient is φ = 398545371000.

The previous prime is 404552331409. The next prime is 404552331451. The reversal of 404552331431 is 134133255404.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-404552331431 is a prime.

It is a super-2 number, since 2×404552331431² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 404552331391 and 404552331400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404552331451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2115125 + ... + 2298446.

It is an arithmetic number, because the mean of its divisors is an integer number (51321015216).

Almost surely, 2^404552331431 is an apocalyptic number.

404552331431 is a deficient number, since it is larger than the sum of its proper divisors (6015790297).

404552331431 is a wasteful number, since it uses less digits than its factorization.

404552331431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4414933.

The product of its (nonzero) digits is 86400, while the sum is 35.

Adding to 404552331431 its reverse (134133255404), we get a palindrome (538685586835).

The spelling of 404552331431 in words is "four hundred four billion, five hundred fifty-two million, three hundred thirty-one thousand, four hundred thirty-one".