222343489 has 2 divisors, whose sum is σ = 222343490. Its totient is φ = 222343488.

The previous prime is 222343487. The next prime is 222343519. The reversal of 222343489 is 984343222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 201412864 + 20930625 = 14192^2 + 4575^2 .

It is a cyclic number.

It is not a de Polignac number, because 222343489 - 2¹ = 222343487 is a prime.

Together with 222343487, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (222343481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111171744 + 111171745.

It is an arithmetic number, because the mean of its divisors is an integer number (111171745).

Almost surely, 2^222343489 is an apocalyptic number.

It is an amenable number.

222343489 is a deficient number, since it is larger than the sum of its proper divisors (1).

222343489 is an equidigital number, since it uses as much as digits as its factorization.

222343489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82944, while the sum is 37.

The square root of 222343489 is about 14911.1867066307. The cubic root of 222343489 is about 605.8170224216.

The spelling of 222343489 in words is "two hundred twenty-two million, three hundred forty-three thousand, four hundred eighty-nine".