4444521 has 16 divisors (see below), whose sum is σ = 6100800. Its totient is φ = 2877120.

The previous prime is 4444519. The next prime is 4444549. The reversal of 4444521 is 1254444.

It is a happy number.

It is not a de Polignac number, because 4444521 - 2¹ = 4444519 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4444491 and 4444500.

It is not an unprimeable number, because it can be changed into a prime (4444591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27186 + ... + 27348.

It is an arithmetic number, because the mean of its divisors is an integer number (381300).

Almost surely, 2^4444521 is an apocalyptic number.

It is an amenable number.

4444521 is a deficient number, since it is larger than the sum of its proper divisors (1656279).

4444521 is a wasteful number, since it uses less digits than its factorization.

4444521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376.

The product of its digits is 2560, while the sum is 24.

The square root of 4444521 is about 2108.2032634450. The cubic root of 4444521 is about 164.4150822945.

Adding to 4444521 its reverse (1254444), we get a palindrome (5698965).

The spelling of 4444521 in words is "four million, four hundred forty-four thousand, five hundred twenty-one".