22131441 has 16 divisors (see below), whose sum is σ = 33028800. Its totient is φ = 14645664.

The previous prime is 22131397. The next prime is 22131443. The reversal of 22131441 is 14413122.

22131441 = 328² + 329² + ... + 466².

22131441 is a `hidden beast` number, since 221 + 3 + 1 + 441 = 666.

It is not a de Polignac number, because 22131441 - 2¹⁴ = 22115057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22131443) 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 15 ways as a sum of consecutive naturals, for example, 805 + ... + 6701.

It is an arithmetic number, because the mean of its divisors is an integer number (2064300).

Almost surely, 2^22131441 is an apocalyptic number.

It is an amenable number.

22131441 is a deficient number, since it is larger than the sum of its proper divisors (10897359).

22131441 is a wasteful number, since it uses less digits than its factorization.

22131441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6045 (or 6039 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 22131441 is about 4704.4065513091. The cubic root of 22131441 is about 280.7608600206.

Adding to 22131441 its reverse (14413122), we get a palindrome (36544563).

The spelling of 22131441 in words is "twenty-two million, one hundred thirty-one thousand, four hundred forty-one".