2124306 has 56 divisors (see below), whose sum is σ = 5036544. Its totient is φ = 670680.

The previous prime is 2124299. The next prime is 2124319. The reversal of 2124306 is 6034212.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 45175 + ... + 45221.

2^2124306 is an apocalyptic number.

It is a pronic number, being equal to 1457×1458.

It is a practical number, because each smaller number is the sum of distinct divisors of 2124306, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2518272).

2124306 is an abundant number, since it is smaller than the sum of its proper divisors (2912238).

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

2124306 is an equidigital number, since it uses as much as digits as its factorization.

2124306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98 (or 83 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2124306 is about 1457.4999142367. The cubic root of 2124306 is about 128.5500821704.

Adding to 2124306 its reverse (6034212), we get a palindrome (8158518).

The spelling of 2124306 in words is "two million, one hundred twenty-four thousand, three hundred six".