404131433 has 4 divisors (see below), whose sum is σ = 404181120. Its totient is φ = 404081748.

The previous prime is 404131393. The next prime is 404131447. The reversal of 404131433 is 334131404.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 404131433 - 2⁸ = 404131177 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 404131399 and 404131408.

It is not an unprimeable number, because it can be changed into a prime (404131033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9473 + ... + 29966.

It is an arithmetic number, because the mean of its divisors is an integer number (101045280).

Almost surely, 2^404131433 is an apocalyptic number.

It is an amenable number.

404131433 is a deficient number, since it is larger than the sum of its proper divisors (49687).

404131433 is a wasteful number, since it uses less digits than its factorization.

404131433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49686.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 404131433 is about 20103.0204944431. The cubic root of 404131433 is about 739.3343374716.

Adding to 404131433 its reverse (334131404), we get a palindrome (738262837).

The spelling of 404131433 in words is "four hundred four million, one hundred thirty-one thousand, four hundred thirty-three".