404143325 has 6 divisors (see below), whose sum is σ = 501137754. Its totient is φ = 323314640.

The previous prime is 404143321. The next prime is 404143331. The reversal of 404143325 is 523341404.

It can be written as a sum of positive squares in 3 ways, for example, as 9803161 + 394340164 = 3131^2 + 19858^2 .

It is not a de Polignac number, because 404143325 - 2² = 404143321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 404143294 and 404143303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404143321) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8082842 + ... + 8082891.

It is an arithmetic number, because the mean of its divisors is an integer number (83522959).

Almost surely, 2^404143325 is an apocalyptic number.

It is an amenable number.

404143325 is a deficient number, since it is larger than the sum of its proper divisors (96994429).

404143325 is a wasteful number, since it uses less digits than its factorization.

404143325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16165743 (or 16165738 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 404143325 is about 20103.3162687155. The cubic root of 404143325 is about 739.3415893019.

Adding to 404143325 its reverse (523341404), we get a palindrome (927484729).

The spelling of 404143325 in words is "four hundred four million, one hundred forty-three thousand, three hundred twenty-five".