222434309 has 2 divisors, whose sum is σ = 222434310. Its totient is φ = 222434308.

The previous prime is 222434297. The next prime is 222434347. The reversal of 222434309 is 903434222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 123988225 + 98446084 = 11135^2 + 9922^2 .

It is a cyclic number.

It is not a de Polignac number, because 222434309 - 2²⁴ = 205657093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222434209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111217154 + 111217155.

It is an arithmetic number, because the mean of its divisors is an integer number (111217155).

Almost surely, 2^222434309 is an apocalyptic number.

It is an amenable number.

222434309 is a deficient number, since it is larger than the sum of its proper divisors (1).

222434309 is an equidigital number, since it uses as much as digits as its factorization.

222434309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 222434309 is about 14914.2317603020. The cubic root of 222434309 is about 605.8994966339.

The spelling of 222434309 in words is "two hundred twenty-two million, four hundred thirty-four thousand, three hundred nine".