2421244 has 24 divisors (see below), whose sum is σ = 4957568. Its totient is φ = 1013040.

The previous prime is 2421229. The next prime is 2421247. The reversal of 2421244 is 4421242.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2421247) 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 7 ways as a sum of consecutive naturals, for example, 199 + ... + 2209.

2^2421244 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 2421244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2478784).

2421244 is an abundant number, since it is smaller than the sum of its proper divisors (2536324).

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

2421244 is a wasteful number, since it uses less digits than its factorization.

2421244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2065 (or 2063 counting only the distinct ones).

The product of its digits is 512, while the sum is 19.

The square root of 2421244 is about 1556.0347039832. The cubic root of 2421244 is about 134.2804699498.

Adding to 2421244 its reverse (4421242), we get a palindrome (6842486).

The spelling of 2421244 in words is "two million, four hundred twenty-one thousand, two hundred forty-four".