4090225 has 24 divisors (see below), whose sum is σ = 5456000. Its totient is φ = 3032640.

The previous prime is 4090223. The next prime is 4090237. The reversal of 4090225 is 5220904.

It is a happy number.

It is not a de Polignac number, because 4090225 - 2¹ = 4090223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4090196 and 4090205.

It is not an unprimeable number, because it can be changed into a prime (4090223) 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 23 ways as a sum of consecutive naturals, for example, 37471 + ... + 37579.

Almost surely, 2^4090225 is an apocalyptic number.

It is an amenable number.

4090225 is a deficient number, since it is larger than the sum of its proper divisors (1365775).

4090225 is a wasteful number, since it uses less digits than its factorization.

4090225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217 (or 212 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 4090225 is about 2022.4304685205. The cubic root of 4090225 is about 159.9247693202.

The spelling of 4090225 in words is "four million, ninety thousand, two hundred twenty-five".