4439381 has 2 divisors, whose sum is σ = 4439382. Its totient is φ = 4439380.

The previous prime is 4439377. The next prime is 4439389. The reversal of 4439381 is 1839344.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3900625 + 538756 = 1975^2 + 734^2 .

It is a cyclic number.

It is not a de Polignac number, because 4439381 - 2² = 4439377 is a prime.

It is a super-2 number, since 2×4439381² = 39416207326322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4439389) by changing a digit.

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, 2219690 + 2219691.

It is an arithmetic number, because the mean of its divisors is an integer number (2219691).

Almost surely, 2^4439381 is an apocalyptic number.

It is an amenable number.

4439381 is a deficient number, since it is larger than the sum of its proper divisors (1).

4439381 is an equidigital number, since it uses as much as digits as its factorization.

4439381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 32.

The square root of 4439381 is about 2106.9838632510. The cubic root of 4439381 is about 164.3516769233.

The spelling of 4439381 in words is "four million, four hundred thirty-nine thousand, three hundred eighty-one".