222748469 has 2 divisors, whose sum is σ = 222748470. Its totient is φ = 222748468.

The previous prime is 222748459. The next prime is 222748483. The reversal of 222748469 is 964847222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 198443569 + 24304900 = 14087^2 + 4930^2 .

It is a cyclic number.

It is not a de Polignac number, because 222748469 - 2¹² = 222744373 is a prime.

It is a super-2 number, since 2×222748469² = 99233760883687922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222748429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111374234 + 111374235.

It is an arithmetic number, because the mean of its divisors is an integer number (111374235).

Almost surely, 2^222748469 is an apocalyptic number.

It is an amenable number.

222748469 is a deficient number, since it is larger than the sum of its proper divisors (1).

222748469 is an equidigital number, since it uses as much as digits as its factorization.

222748469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 387072, while the sum is 44.

The square root of 222748469 is about 14924.7602660813. The cubic root of 222748469 is about 606.1846142824.

The spelling of 222748469 in words is "two hundred twenty-two million, seven hundred forty-eight thousand, four hundred sixty-nine".