222449377 has 2 divisors, whose sum is σ = 222449378. Its totient is φ = 222449376.

The previous prime is 222449351. The next prime is 222449389. The reversal of 222449377 is 773944222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 132503121 + 89946256 = 11511^2 + 9484^2 .

It is a cyclic number.

It is not a de Polignac number, because 222449377 - 2¹⁵ = 222416609 is a prime.

It is not a weakly prime, because it can be changed into another prime (222449347) 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, 111224688 + 111224689.

It is an arithmetic number, because the mean of its divisors is an integer number (111224689).

Almost surely, 2^222449377 is an apocalyptic number.

It is an amenable number.

222449377 is a deficient number, since it is larger than the sum of its proper divisors (1).

222449377 is an equidigital number, since it uses as much as digits as its factorization.

222449377 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 169344, while the sum is 40.

The square root of 222449377 is about 14914.7369068314. The cubic root of 222449377 is about 605.9131778079.

The spelling of 222449377 in words is "two hundred twenty-two million, four hundred forty-nine thousand, three hundred seventy-seven".