16380349 has 2 divisors, whose sum is σ = 16380350. Its totient is φ = 16380348.

The previous prime is 16380317. The next prime is 16380373. The reversal of 16380349 is 94308361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15657849 + 722500 = 3957^2 + 850^2 .

It is a cyclic number.

It is not a de Polignac number, because 16380349 - 2⁵ = 16380317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16380149) 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 as a sum of consecutive naturals, namely, 8190174 + 8190175.

It is an arithmetic number, because the mean of its divisors is an integer number (8190175).

Almost surely, 2^16380349 is an apocalyptic number.

It is an amenable number.

16380349 is a deficient number, since it is larger than the sum of its proper divisors (1).

16380349 is an equidigital number, since it uses as much as digits as its factorization.

16380349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 16380349 is about 4047.2643847419. The cubic root of 16380349 is about 253.9653010239.

The spelling of 16380349 in words is "sixteen million, three hundred eighty thousand, three hundred forty-nine".