2238289 has 2 divisors, whose sum is σ = 2238290. Its totient is φ = 2238288.

The previous prime is 2238287. The next prime is 2238311. The reversal of 2238289 is 9828322.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2007889 + 230400 = 1417^2 + 480^2 .

It is a cyclic number.

It is not a de Polignac number, because 2238289 - 2¹ = 2238287 is a prime.

Together with 2238287, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2238287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1119144 + 1119145.

It is an arithmetic number, because the mean of its divisors is an integer number (1119145).

2^2238289 is an apocalyptic number.

It is an amenable number.

2238289 is a deficient number, since it is larger than the sum of its proper divisors (1).

2238289 is an equidigital number, since it uses as much as digits as its factorization.

2238289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13824, while the sum is 34.

The square root of 2238289 is about 1496.0912405331. The cubic root of 2238289 is about 130.8093296690.

The spelling of 2238289 in words is "two million, two hundred thirty-eight thousand, two hundred eighty-nine".