2164544 has 28 divisors (see below), whose sum is σ = 4437888. Its totient is φ = 1046400.

The previous prime is 2164529. The next prime is 2164571. The reversal of 2164544 is 4454612.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1439 + ... + 2529.

It is an arithmetic number, because the mean of its divisors is an integer number (158496).

2^2164544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2164544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2218944).

2164544 is an abundant number, since it is smaller than the sum of its proper divisors (2273344).

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

2164544 is a wasteful number, since it uses less digits than its factorization.

2164544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1134 (or 1124 counting only the distinct ones).

The product of its digits is 3840, while the sum is 26.

The square root of 2164544 is about 1471.2389336882. The cubic root of 2164544 is about 129.3566637568.

The spelling of 2164544 in words is "two million, one hundred sixty-four thousand, five hundred forty-four".