4040225 has 12 divisors (see below), whose sum is σ = 5725824. Its totient is φ = 2770320.

The previous prime is 4040219. The next prime is 4040227. The reversal of 4040225 is 5220404.

4040225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4040225 - 2⁶ = 4040161 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4040227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11369 + ... + 11718.

It is an arithmetic number, because the mean of its divisors is an integer number (477152).

Almost surely, 2^4040225 is an apocalyptic number.

It is an amenable number.

4040225 is a deficient number, since it is larger than the sum of its proper divisors (1685599).

4040225 is a wasteful number, since it uses less digits than its factorization.

4040225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23104 (or 23099 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 4040225 is about 2010.0310942869. The cubic root of 4040225 is about 159.2704414793.

Adding to 4040225 its reverse (5220404), we get a palindrome (9260629).

The spelling of 4040225 in words is "four million, forty thousand, two hundred twenty-five".