2244004421 has 4 divisors (see below), whose sum is σ = 2249600844. Its totient is φ = 2238408000.

The previous prime is 2244004397. The next prime is 2244004459. The reversal of 2244004421 is 1244004422.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1654048900 + 589955521 = 40670^2 + 24289^2 .

It is a cyclic number.

It is not a de Polignac number, because 2244004421 - 2¹⁰ = 2244003397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2244004921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2797610 + ... + 2798411.

It is an arithmetic number, because the mean of its divisors is an integer number (562400211).

Almost surely, 2^2244004421 is an apocalyptic number.

It is an amenable number.

2244004421 is a deficient number, since it is larger than the sum of its proper divisors (5596423).

2244004421 is an equidigital number, since it uses as much as digits as its factorization.

2244004421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5596422.

The product of its (nonzero) digits is 2048, while the sum is 23.

The square root of 2244004421 is about 47370.9237929766. The cubic root of 2244004421 is about 1309.2057460331.

Adding to 2244004421 its reverse (1244004422), we get a palindrome (3488008843).

Subtracting from 2244004421 its reverse (1244004422), we obtain a palindrome (999999999).

The spelling of 2244004421 in words is "two billion, two hundred forty-four million, four thousand, four hundred twenty-one".