404105225 has 12 divisors (see below), whose sum is σ = 513313500. Its totient is φ = 315398400.

The previous prime is 404105179. The next prime is 404105267. The reversal of 404105225 is 522501404.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 35772361 + 368332864 = 5981^2 + 19192^2 .

It is not a de Polignac number, because 404105225 - 2⁶ = 404105161 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 404105225.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 196100 + ... + 198149.

It is an arithmetic number, because the mean of its divisors is an integer number (42776125).

Almost surely, 2^404105225 is an apocalyptic number.

It is an amenable number.

404105225 is a deficient number, since it is larger than the sum of its proper divisors (109208275).

404105225 is a wasteful number, since it uses less digits than its factorization.

404105225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394300 (or 394295 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 404105225 is about 20102.3686415308. The cubic root of 404105225 is about 739.3183551355.

Adding to 404105225 its reverse (522501404), we get a palindrome (926606629).

The spelling of 404105225 in words is "four hundred four million, one hundred five thousand, two hundred twenty-five".