4040342225 has 6 divisors (see below), whose sum is σ = 5010024390. Its totient is φ = 3232273760.

The previous prime is 4040342209. The next prime is 4040342227. The reversal of 4040342225 is 5222430404.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 40538689 + 3999803536 = 6367^2 + 63244^2 .

It is not a de Polignac number, because 4040342225 - 2⁴ = 4040342209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4040342194 and 4040342203.

It is not an unprimeable number, because it can be changed into a prime (4040342227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 80806820 + ... + 80806869.

It is an arithmetic number, because the mean of its divisors is an integer number (835004065).

Almost surely, 2^4040342225 is an apocalyptic number.

It is an amenable number.

4040342225 is a deficient number, since it is larger than the sum of its proper divisors (969682165).

4040342225 is a wasteful number, since it uses less digits than its factorization.

4040342225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161613699 (or 161613694 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 26.

The square root of 4040342225 is about 63563.6863704427. The cubic root of 4040342225 is about 1592.7198184701.

Adding to 4040342225 its reverse (5222430404), we get a palindrome (9262772629).

It can be divided in two parts, 40403 and 42225, that added together give a palindrome (82628).

The spelling of 4040342225 in words is "four billion, forty million, three hundred forty-two thousand, two hundred twenty-five".