4423444 has 6 divisors (see below), whose sum is σ = 7741034. Its totient is φ = 2211720.

The previous prime is 4423427. The next prime is 4423481. The reversal of 4423444 is 4443244.

It can be written as a sum of positive squares in only one way, i.e., 3802500 + 620944 = 1950^2 + 788^2 .

It is a super-2 number, since 2×4423444² = 39133713642272, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 552927 + ... + 552934.

Almost surely, 2^4423444 is an apocalyptic number.

It is an amenable number.

4423444 is a deficient number, since it is larger than the sum of its proper divisors (3317590).

4423444 is a wasteful number, since it uses less digits than its factorization.

4423444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1105865 (or 1105863 counting only the distinct ones).

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

The square root of 4423444 is about 2103.1985165457. The cubic root of 4423444 is about 164.1547715993.

Adding to 4423444 its reverse (4443244), we get a palindrome (8866688).

The spelling of 4423444 in words is "four million, four hundred twenty-three thousand, four hundred forty-four".