22456849 has 2 divisors, whose sum is σ = 22456850. Its totient is φ = 22456848.

The previous prime is 22456843. The next prime is 22456873. The reversal of 22456849 is 94865422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22391824 + 65025 = 4732^2 + 255^2 .

It is a cyclic number.

It is not a de Polignac number, because 22456849 - 2¹¹ = 22454801 is a prime.

It is not a weakly prime, because it can be changed into another prime (22456843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11228424 + 11228425.

It is an arithmetic number, because the mean of its divisors is an integer number (11228425).

Almost surely, 2^22456849 is an apocalyptic number.

It is an amenable number.

22456849 is a deficient number, since it is larger than the sum of its proper divisors (1).

22456849 is an equidigital number, since it uses as much as digits as its factorization.

22456849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 138240, while the sum is 40.

The square root of 22456849 is about 4738.8657925710. The cubic root of 22456849 is about 282.1302191881.

The spelling of 22456849 in words is "twenty-two million, four hundred fifty-six thousand, eight hundred forty-nine".