40506222 has 8 divisors (see below), whose sum is σ = 81012456. Its totient is φ = 13502072.

The previous prime is 40506209. The next prime is 40506239. The reversal of 40506222 is 22260504.

40506222 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.

40506222 is an admirable number.

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, 3375513 + ... + 3375524.

It is an arithmetic number, because the mean of its divisors is an integer number (10126557).

Almost surely, 2^40506222 is an apocalyptic number.

40506222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

40506222 is a wasteful number, since it uses less digits than its factorization.

40506222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6751042.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 40506222 is about 6364.4498583931. The cubic root of 40506222 is about 343.4318580680.

Adding to 40506222 its reverse (22260504), we get a palindrome (62766726).

The spelling of 40506222 in words is "forty million, five hundred six thousand, two hundred twenty-two".