16244749 has 2 divisors, whose sum is σ = 16244750. Its totient is φ = 16244748.

The previous prime is 16244747. The next prime is 16244771. The reversal of 16244749 is 94744261.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15264649 + 980100 = 3907^2 + 990^2 .

It is an emirp because it is prime and its reverse (94744261) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16244749 - 2¹ = 16244747 is a prime.

Together with 16244747, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16244747) 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, 8122374 + 8122375.

It is an arithmetic number, because the mean of its divisors is an integer number (8122375).

Almost surely, 2^16244749 is an apocalyptic number.

It is an amenable number.

16244749 is a deficient number, since it is larger than the sum of its proper divisors (1).

16244749 is an equidigital number, since it uses as much as digits as its factorization.

16244749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 37.

The square root of 16244749 is about 4030.4775151339. The cubic root of 16244749 is about 253.2625654516.

The spelling of 16244749 in words is "sixteen million, two hundred forty-four thousand, seven hundred forty-nine".