40244225 has 24 divisors (see below), whose sum is σ = 58121280. Its totient is φ = 27069120.

The previous prime is 40244209. The next prime is 40244249. The reversal of 40244225 is 52244204.

It is not a de Polignac number, because 40244225 - 2⁴ = 40244209 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 40244225.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7106 + ... + 11444.

It is an arithmetic number, because the mean of its divisors is an integer number (2421720).

Almost surely, 2^40244225 is an apocalyptic number.

It is an amenable number.

40244225 is a deficient number, since it is larger than the sum of its proper divisors (17877055).

40244225 is a wasteful number, since it uses less digits than its factorization.

40244225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4409 (or 4404 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 23.

The square root of 40244225 is about 6343.8336201385. The cubic root of 40244225 is about 342.6898090112.

Adding to 40244225 its reverse (52244204), we get a palindrome (92488429).

The spelling of 40244225 in words is "forty million, two hundred forty-four thousand, two hundred twenty-five".