2289841 has 2 divisors, whose sum is σ = 2289842. Its totient is φ = 2289840.

The previous prime is 2289839. The next prime is 2289863. The reversal of 2289841 is 1489822.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2187441 + 102400 = 1479^2 + 320^2 .

It is a cyclic number.

It is not a de Polignac number, because 2289841 - 2¹ = 2289839 is a prime.

Together with 2289839, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 2289797 and 2289806.

It is not a weakly prime, because it can be changed into another prime (2289871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1144920 + 1144921.

It is an arithmetic number, because the mean of its divisors is an integer number (1144921).

2^2289841 is an apocalyptic number.

It is an amenable number.

2289841 is a deficient number, since it is larger than the sum of its proper divisors (1).

2289841 is an equidigital number, since it uses as much as digits as its factorization.

2289841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9216, while the sum is 34.

The square root of 2289841 is about 1513.2220590515. Note that the first 3 decimals coincide. The cubic root of 2289841 is about 131.8059783464.

The spelling of 2289841 in words is "two million, two hundred eighty-nine thousand, eight hundred forty-one".