2289606 has 32 divisors (see below), whose sum is σ = 5056128. Its totient is φ = 685440.

The previous prime is 2289601. The next prime is 2289641. The reversal of 2289606 is 6069822.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2289601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7305 + ... + 7611.

It is an arithmetic number, because the mean of its divisors is an integer number (158004).

2^2289606 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2289606, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2528064).

2289606 is an abundant number, since it is smaller than the sum of its proper divisors (2766522).

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

2289606 is a wasteful number, since it uses less digits than its factorization.

2289606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 2289606 is about 1513.1444081779. The cubic root of 2289606 is about 131.8014692320.

The spelling of 2289606 in words is "two million, two hundred eighty-nine thousand, six hundred six".