22442141 has 4 divisors (see below), whose sum is σ = 22479132. Its totient is φ = 22405152.

The previous prime is 22442117. The next prime is 22442149. The reversal of 22442141 is 14124422.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6482116 + 15960025 = 2546^2 + 3995^2 .

It is a cyclic number.

It is not a de Polignac number, because 22442141 - 2²² = 18247837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22442149) 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, 17570 + ... + 18803.

It is an arithmetic number, because the mean of its divisors is an integer number (5619783).

Almost surely, 2^22442141 is an apocalyptic number.

It is an amenable number.

22442141 is a deficient number, since it is larger than the sum of its proper divisors (36991).

22442141 is an equidigital number, since it uses as much as digits as its factorization.

22442141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36990.

The product of its digits is 512, while the sum is 20.

The square root of 22442141 is about 4737.3136902679. The cubic root of 22442141 is about 282.0686124817.

Adding to 22442141 its reverse (14124422), we get a palindrome (36566563).

The spelling of 22442141 in words is "twenty-two million, four hundred forty-two thousand, one hundred forty-one".