4444381 has 2 divisors, whose sum is σ = 4444382. Its totient is φ = 4444380.

The previous prime is 4444369. The next prime is 4444397. The reversal of 4444381 is 1834444.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2295225 + 2149156 = 1515^2 + 1466^2 .

It is a cyclic number.

It is not a de Polignac number, because 4444381 - 2²¹ = 2347229 is a prime.

It is a super-2 number, since 2×4444381² = 39505044946322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4444331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2222190 + 2222191.

It is an arithmetic number, because the mean of its divisors is an integer number (2222191).

Almost surely, 2^4444381 is an apocalyptic number.

It is an amenable number.

4444381 is a deficient number, since it is larger than the sum of its proper divisors (1).

4444381 is an equidigital number, since it uses as much as digits as its factorization.

4444381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6144, while the sum is 28.

The square root of 4444381 is about 2108.1700595540. The cubic root of 4444381 is about 164.4133559477.

The spelling of 4444381 in words is "four million, four hundred forty-four thousand, three hundred eighty-one".