22240433 has 2 divisors, whose sum is σ = 22240434. Its totient is φ = 22240432.

The previous prime is 22240429. The next prime is 22240457. The reversal of 22240433 is 33404222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21003889 + 1236544 = 4583^2 + 1112^2 .

It is a cyclic number.

It is not a de Polignac number, because 22240433 - 2² = 22240429 is a prime.

It is not a weakly prime, because it can be changed into another prime (22240133) 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 as a sum of consecutive naturals, namely, 11120216 + 11120217.

It is an arithmetic number, because the mean of its divisors is an integer number (11120217).

Almost surely, 2^22240433 is an apocalyptic number.

It is an amenable number.

22240433 is a deficient number, since it is larger than the sum of its proper divisors (1).

22240433 is an equidigital number, since it uses as much as digits as its factorization.

22240433 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 22240433 is about 4715.9763570230. The cubic root of 22240433 is about 281.2209986228.

Adding to 22240433 its reverse (33404222), we get a palindrome (55644655).

The spelling of 22240433 in words is "twenty-two million, two hundred forty thousand, four hundred thirty-three".