38449 has 2 divisors, whose sum is σ = 38450. Its totient is φ = 38448.

The previous prime is 38447. The next prime is 38453. The reversal of 38449 is 94483.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21025 + 17424 = 145^2 + 132^2 .

It is an emirp because it is prime and its reverse (94483) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38449 - 2¹ = 38447 is a prime.

Together with 38447, it forms a pair of twin primes.

It is a plaindrome in base 13.

It is a nialpdrome in base 16.

It is not a weakly prime, because it can be changed into another prime (38447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19224 + 19225.

It is an arithmetic number, because the mean of its divisors is an integer number (19225).

2³⁸⁴⁴⁹ is an apocalyptic number.

It is an amenable number.

38449 is a deficient number, since it is larger than the sum of its proper divisors (1).

38449 is an equidigital number, since it uses as much as digits as its factorization.

38449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 28.

The square root of 38449 is about 196.0841656024. The cubic root of 38449 is about 33.7516505823.

Adding to 38449 its product of digits (3456), we get a triangular number (41905 = T₂₈₉).

It can be divided in two parts, 3844 and 9, that multiplied together give a square (34596 = 186²).

The spelling of 38449 in words is "thirty-eight thousand, four hundred forty-nine".