40442222 has 8 divisors (see below), whose sum is σ = 63856200. Its totient is φ = 19156824.

The previous prime is 40442209. The next prime is 40442243. The reversal of 40442222 is 22224404.

40442222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 40442194 and 40442203.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 532097 + ... + 532172.

It is an arithmetic number, because the mean of its divisors is an integer number (7982025).

Almost surely, 2^40442222 is an apocalyptic number.

40442222 is a deficient number, since it is larger than the sum of its proper divisors (23413978).

40442222 is a wasteful number, since it uses less digits than its factorization.

40442222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1064290.

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 40442222 is about 6359.4199421016. The cubic root of 40442222 is about 343.2508881332.

Adding to 40442222 its reverse (22224404), we get a palindrome (62666626).

The spelling of 40442222 in words is "forty million, four hundred forty-two thousand, two hundred twenty-two".