4044321 has 24 divisors (see below), whose sum is σ = 6258720. Its totient is φ = 2509056.

The previous prime is 4044319. The next prime is 4044323. The reversal of 4044321 is 1234404.

It is an interprime number because it is at equal distance from previous prime (4044319) and next prime (4044323).

It is not a de Polignac number, because 4044321 - 2¹ = 4044319 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4044294 and 4044303.

It is not an unprimeable number, because it can be changed into a prime (4044323) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11281 + ... + 11633.

It is an arithmetic number, because the mean of its divisors is an integer number (260780).

Almost surely, 2^4044321 is an apocalyptic number.

It is an amenable number.

4044321 is a deficient number, since it is larger than the sum of its proper divisors (2214399).

4044321 is a wasteful number, since it uses less digits than its factorization.

4044321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445 (or 442 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 4044321 is about 2011.0497258894. The cubic root of 4044321 is about 159.3242463534.

Adding to 4044321 its reverse (1234404), we get a palindrome (5278725).

The spelling of 4044321 in words is "four million, forty-four thousand, three hundred twenty-one".