4382381 has 2 divisors, whose sum is σ = 4382382. Its totient is φ = 4382380.

The previous prime is 4382359. The next prime is 4382383. The reversal of 4382381 is 1832834.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3496900 + 885481 = 1870^2 + 941^2 .

It is a cyclic number.

It is not a de Polignac number, because 4382381 - 2¹⁰ = 4381357 is a prime.

It is a super-2 number, since 2×4382381² = 38410526458322, which contains 22 as substring.

Together with 4382383, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4382383) 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, 2191190 + 2191191.

It is an arithmetic number, because the mean of its divisors is an integer number (2191191).

Almost surely, 2^4382381 is an apocalyptic number.

It is an amenable number.

4382381 is a deficient number, since it is larger than the sum of its proper divisors (1).

4382381 is an equidigital number, since it uses as much as digits as its factorization.

4382381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4608, while the sum is 29.

The square root of 4382381 is about 2093.4137192633. The cubic root of 4382381 is about 163.6452399880.

The spelling of 4382381 in words is "four million, three hundred eighty-two thousand, three hundred eighty-one".