4243444 has 6 divisors (see below), whose sum is σ = 7426034. Its totient is φ = 2121720.

The previous prime is 4243439. The next prime is 4243453. The reversal of 4243444 is 4443424.

It can be written as a sum of positive squares in only one way, i.e., 4153444 + 90000 = 2038^2 + 300^2 .

It is a super-2 number, since 2×4243444² = 36013633962272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 530427 + ... + 530434.

Almost surely, 2^4243444 is an apocalyptic number.

It is an amenable number.

4243444 is a deficient number, since it is larger than the sum of its proper divisors (3182590).

4243444 is a wasteful number, since it uses less digits than its factorization.

4243444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1060865 (or 1060863 counting only the distinct ones).

The product of its digits is 6144, while the sum is 25.

The square root of 4243444 is about 2059.9621355743. The cubic root of 4243444 is about 161.8972574157.

Adding to 4243444 its reverse (4443424), we get a palindrome (8686868).

The spelling of 4243444 in words is "four million, two hundred forty-three thousand, four hundred forty-four".