2144436 has 48 divisors (see below), whose sum is σ = 5846400. Its totient is φ = 611520.

The previous prime is 2144419. The next prime is 2144437. The reversal of 2144436 is 6344412.

It is a nude number because it is divisible by every one of its digits.

It is a d-powerful number, because it can be written as 2²¹ + 1 + 4³ + 4³ + 4⁴ + 3⁵ + 6⁶ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2144437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3856 + ... + 4376.

It is an arithmetic number, because the mean of its divisors is an integer number (121800).

2^2144436 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 2144436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2923200).

2144436 is an abundant number, since it is smaller than the sum of its proper divisors (3701964).

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

2144436 is a wasteful number, since it uses less digits than its factorization.

2144436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549 (or 533 counting only the distinct ones).

The product of its digits is 2304, while the sum is 24.

The square root of 2144436 is about 1464.3892925039. The cubic root of 2144436 is about 128.9548547032.

Subtracting from 2144436 its sum of digits (24), we obtain a palindrome (2144412).

Adding to 2144436 its reverse (6344412), we get a palindrome (8488848).

It can be divided in two parts, 21 and 44436, that multiplied together give a square (933156 = 966²).

The spelling of 2144436 in words is "two million, one hundred forty-four thousand, four hundred thirty-six".