2164338 has 48 divisors (see below), whose sum is σ = 5425056. Its totient is φ = 616320.

The previous prime is 2164313. The next prime is 2164367. The reversal of 2164338 is 8334612.

It is a happy number.

It is a Curzon number.

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, 3045 + ... + 3687.

It is an arithmetic number, because the mean of its divisors is an integer number (113022).

2^2164338 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2164338, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2712528).

2164338 is an abundant number, since it is smaller than the sum of its proper divisors (3260718).

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

2164338 is a wasteful number, since it uses less digits than its factorization.

2164338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679 (or 676 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 2164338 is about 1471.1689229997. The cubic root of 2164338 is about 129.3525599952.

It can be divided in two parts, 216 and 4338, that added together give a palindrome (4554).

The spelling of 2164338 in words is "two million, one hundred sixty-four thousand, three hundred thirty-eight".