2390289 has 16 divisors (see below), whose sum is σ = 3513024. Its totient is φ = 1433600.

The previous prime is 2390263. The next prime is 2390291. The reversal of 2390289 is 9820932.

It is a cyclic number.

It is not a de Polignac number, because 2390289 - 2⁸ = 2390033 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

2390289 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2390249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3409 + ... + 4049.

It is an arithmetic number, because the mean of its divisors is an integer number (219564).

2^2390289 is an apocalyptic number.

It is an amenable number.

2390289 is a deficient number, since it is larger than the sum of its proper divisors (1122735).

2390289 is a wasteful number, since it uses less digits than its factorization.

2390289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 2390289 is about 1546.0559498285. The cubic root of 2390289 is about 133.7057663725.

Adding to 2390289 its reverse (9820932), we get a palindrome (12211221).

The spelling of 2390289 in words is "two million, three hundred ninety thousand, two hundred eighty-nine".