4244421 has 8 divisors (see below), whose sum is σ = 5675680. Its totient is φ = 2821392.

The previous prime is 4244417. The next prime is 4244423. The reversal of 4244421 is 1244424.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4244421 - 2² = 4244417 is a prime.

It is a Duffinian number.

4244421 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4244423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 730 + ... + 3003.

It is an arithmetic number, because the mean of its divisors is an integer number (709460).

Almost surely, 2^4244421 is an apocalyptic number.

It is an amenable number.

4244421 is a deficient number, since it is larger than the sum of its proper divisors (1431259).

4244421 is a wasteful number, since it uses less digits than its factorization.

4244421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4115.

The product of its digits is 1024, while the sum is 21.

The square root of 4244421 is about 2060.1992622074. The cubic root of 4244421 is about 161.9096814029.

Adding to 4244421 its reverse (1244424), we get a palindrome (5488845).

The spelling of 4244421 in words is "four million, two hundred forty-four thousand, four hundred twenty-one".