40122225 has 144 divisors (see below), whose sum is σ = 89369280. Its totient is φ = 16934400.

The previous prime is 40122223. The next prime is 40122233. The reversal of 40122225 is 52222104.

40122225 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 40122225 - 2¹ = 40122223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40122198 and 40122207.

It is not an unprimeable number, because it can be changed into a prime (40122223) 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 143 ways as a sum of consecutive naturals, for example, 933054 + ... + 933096.

It is an arithmetic number, because the mean of its divisors is an integer number (620620).

Almost surely, 2^40122225 is an apocalyptic number.

40122225 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40122225 is an abundant number, since it is smaller than the sum of its proper divisors (49247055).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40122225 is a wasteful number, since it uses less digits than its factorization.

40122225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112 (or 104 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 40122225 is about 6334.2106848446. The cubic root of 40122225 is about 342.3431714915.

Adding to 40122225 its reverse (52222104), we get a palindrome (92344329).

It can be divided in two parts, 40 and 122225, that added together give a triangular number (122265 = T₄₉₄).

The spelling of 40122225 in words is "forty million, one hundred twenty-two thousand, two hundred twenty-five".