2442289 has 2 divisors, whose sum is σ = 2442290. Its totient is φ = 2442288.

The previous prime is 2442287. The next prime is 2442311. The reversal of 2442289 is 9822442.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2226064 + 216225 = 1492^2 + 465^2 .

It is a cyclic number.

It is not a de Polignac number, because 2442289 - 2¹ = 2442287 is a prime.

Together with 2442287, it forms a pair of twin primes.

It is a Chen prime.

2442289 is a lucky number.

It is equal to p₁₇₉₁₄₉ and since 2442289 and 179149 have the same sum of digits, it is a Honaker prime.

It is a nialpdrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 2442289.

It is not a weakly prime, because it can be changed into another prime (2442287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1221144 + 1221145.

It is an arithmetic number, because the mean of its divisors is an integer number (1221145).

2^2442289 is an apocalyptic number.

It is an amenable number.

2442289 is a deficient number, since it is larger than the sum of its proper divisors (1).

2442289 is an equidigital number, since it uses as much as digits as its factorization.

2442289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9216, while the sum is 31.

The square root of 2442289 is about 1562.7824544702. The cubic root of 2442289 is about 134.6683950970.

The spelling of 2442289 in words is "two million, four hundred forty-two thousand, two hundred eighty-nine".