16448369 has 6 divisors (see below), whose sum is σ = 19133874. Its totient is φ = 14098560.

The previous prime is 16448363. The next prime is 16448407. The reversal of 16448369 is 96384461.

It can be written as a sum of positive squares in only one way, i.e., 12496225 + 3952144 = 3535^2 + 1988^2 .

It is not a de Polignac number, because 16448369 - 2¹² = 16444273 is a prime.

It is a super-2 number, since 2×16448369² = 541097685520322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16448363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 167792 + ... + 167889.

It is an arithmetic number, because the mean of its divisors is an integer number (3188979).

Almost surely, 2^16448369 is an apocalyptic number.

It is an amenable number.

16448369 is a deficient number, since it is larger than the sum of its proper divisors (2685505).

16448369 is an equidigital number, since it uses as much as digits as its factorization.

16448369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335695 (or 335688 counting only the distinct ones).

The product of its digits is 124416, while the sum is 41.

The square root of 16448369 is about 4055.6588860505. The cubic root of 16448369 is about 254.3163489673.

The spelling of 16448369 in words is "sixteen million, four hundred forty-eight thousand, three hundred sixty-nine".