2428289 has 4 divisors (see below), whose sum is σ = 2433456. Its totient is φ = 2423124.

The previous prime is 2428267. The next prime is 2428291. The reversal of 2428289 is 9828242.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2428289 - 2⁸ = 2428033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2428249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1799 + ... + 2844.

It is an arithmetic number, because the mean of its divisors is an integer number (608364).

2^2428289 is an apocalyptic number.

It is an amenable number.

2428289 is a deficient number, since it is larger than the sum of its proper divisors (5167).

2428289 is an equidigital number, since it uses as much as digits as its factorization.

2428289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5166.

The product of its digits is 18432, while the sum is 35.

The square root of 2428289 is about 1558.2968266669. The cubic root of 2428289 is about 134.4105807347.

The spelling of 2428289 in words is "two million, four hundred twenty-eight thousand, two hundred eighty-nine".