16383449 has 2 divisors, whose sum is σ = 16383450. Its totient is φ = 16383448.

The previous prime is 16383439. The next prime is 16383481. The reversal of 16383449 is 94438361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11343424 + 5040025 = 3368^2 + 2245^2 .

It is an emirp because it is prime and its reverse (94438361) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16383449 - 2¹² = 16379353 is a prime.

It is a super-2 number, since 2×16383449² = 536834802271202, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16383439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8191724 + 8191725.

It is an arithmetic number, because the mean of its divisors is an integer number (8191725).

Almost surely, 2^16383449 is an apocalyptic number.

It is an amenable number.

16383449 is a deficient number, since it is larger than the sum of its proper divisors (1).

16383449 is an equidigital number, since it uses as much as digits as its factorization.

16383449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 38.

The square root of 16383449 is about 4047.6473413577. The cubic root of 16383449 is about 253.9813210890.

The spelling of 16383449 in words is "sixteen million, three hundred eighty-three thousand, four hundred forty-nine".