16316378 has 16 divisors (see below), whose sum is σ = 26423880. Its totient is φ = 7511616.

The previous prime is 16316369. The next prime is 16316411. The reversal of 16316378 is 87361361.

It can be written as a sum of positive squares in 4 ways, for example, as 12694969 + 3621409 = 3563^2 + 1903^2 .

It is a Curzon number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 19268 + ... + 20096.

Almost surely, 2^16316378 is an apocalyptic number.

16316378 is a deficient number, since it is larger than the sum of its proper divisors (10107502).

16316378 is a wasteful number, since it uses less digits than its factorization.

16316378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1601.

The product of its digits is 18144, while the sum is 35.

The square root of 16316378 is about 4039.3536611691. The cubic root of 16316378 is about 253.6342618910.

The spelling of 16316378 in words is "sixteen million, three hundred sixteen thousand, three hundred seventy-eight".