22538441 has 2 divisors, whose sum is σ = 22538442. Its totient is φ = 22538440.

The previous prime is 22538437. The next prime is 22538443. The reversal of 22538441 is 14483522.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20070400 + 2468041 = 4480^2 + 1571^2 .

It is a cyclic number.

It is not a de Polignac number, because 22538441 - 2² = 22538437 is a prime.

Together with 22538443, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22538443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11269220 + 11269221.

It is an arithmetic number, because the mean of its divisors is an integer number (11269221).

Almost surely, 2^22538441 is an apocalyptic number.

It is an amenable number.

22538441 is a deficient number, since it is larger than the sum of its proper divisors (1).

22538441 is an equidigital number, since it uses as much as digits as its factorization.

22538441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7680, while the sum is 29.

The square root of 22538441 is about 4747.4667981988. The cubic root of 22538441 is about 282.4714921503.

The spelling of 22538441 in words is "twenty-two million, five hundred thirty-eight thousand, four hundred forty-one".