40222225 has 12 divisors (see below), whose sum is σ = 50069340. Its totient is φ = 32052800.

The previous prime is 40222223. The next prime is 40222249. The reversal of 40222225 is 52222204.

40222225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 17297281 + 22924944 = 4159^2 + 4788^2 .

It is not a de Polignac number, because 40222225 - 2¹ = 40222223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40222223) 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 11 ways as a sum of consecutive naturals, for example, 3735 + ... + 9715.

It is an arithmetic number, because the mean of its divisors is an integer number (4172445).

Almost surely, 2^40222225 is an apocalyptic number.

It is an amenable number.

40222225 is a deficient number, since it is larger than the sum of its proper divisors (9847115).

40222225 is a wasteful number, since it uses less digits than its factorization.

40222225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6260 (or 6255 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 40222225 is about 6342.0994158086. The cubic root of 40222225 is about 342.6273524309.

Adding to 40222225 its reverse (52222204), we get a palindrome (92444429).

The spelling of 40222225 in words is "forty million, two hundred twenty-two thousand, two hundred twenty-five".