2289798 has 48 divisors (see below), whose sum is σ = 6009120. Its totient is φ = 615168.

The previous prime is 2289779. The next prime is 2289803. The reversal of 2289798 is 8979822.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1608 + ... + 2676.

It is an arithmetic number, because the mean of its divisors is an integer number (125190).

2^2289798 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2289798, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3004560).

2289798 is an abundant number, since it is smaller than the sum of its proper divisors (3719322).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2289798 is a wasteful number, since it uses less digits than its factorization.

2289798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101 (or 1098 counting only the distinct ones).

The product of its digits is 145152, while the sum is 45.

The square root of 2289798 is about 1513.2078508916. The cubic root of 2289798 is about 131.8051532974.

The spelling of 2289798 in words is "two million, two hundred eighty-nine thousand, seven hundred ninety-eight".