223442449 has 2 divisors, whose sum is σ = 223442450. Its totient is φ = 223442448.

The previous prime is 223442437. The next prime is 223442473. The reversal of 223442449 is 944244322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 160478224 + 62964225 = 12668^2 + 7935^2 .

It is a cyclic number.

It is not a de Polignac number, because 223442449 - 2⁹ = 223441937 is a prime.

It is not a weakly prime, because it can be changed into another prime (223472449) 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, 111721224 + 111721225.

It is an arithmetic number, because the mean of its divisors is an integer number (111721225).

Almost surely, 2^223442449 is an apocalyptic number.

It is an amenable number.

223442449 is a deficient number, since it is larger than the sum of its proper divisors (1).

223442449 is an equidigital number, since it uses as much as digits as its factorization.

223442449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 55296, while the sum is 34.

The square root of 223442449 is about 14947.9914704284. The cubic root of 223442449 is about 606.8134908421.

The spelling of 223442449 in words is "two hundred twenty-three million, four hundred forty-two thousand, four hundred forty-nine".