43542222 has 8 divisors (see below), whose sum is σ = 87084456. Its totient is φ = 14514072.

The previous prime is 43542221. The next prime is 43542251. The reversal of 43542222 is 22224534.

It is a happy number.

43542222 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.

43542222 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 43542192 and 43542201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43542221) 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 3 ways as a sum of consecutive naturals, for example, 3628513 + ... + 3628524.

It is an arithmetic number, because the mean of its divisors is an integer number (10885557).

Almost surely, 2^43542222 is an apocalyptic number.

43542222 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.

43542222 is a wasteful number, since it uses less digits than its factorization.

43542222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7257042.

The product of its digits is 3840, while the sum is 24.

The square root of 43542222 is about 6598.6530443720. The cubic root of 43542222 is about 351.8062326719.

Adding to 43542222 its reverse (22224534), we get a palindrome (65766756).

The spelling of 43542222 in words is "forty-three million, five hundred forty-two thousand, two hundred twenty-two".