16316404 has 12 divisors (see below), whose sum is σ = 30750244. Its totient is φ = 7530624.

The previous prime is 16316369. The next prime is 16316411. The reversal of 16316404 is 40461361.

It can be written as a sum of positive squares in 2 ways, for example, as 10304100 + 6012304 = 3210^2 + 2452^2 .

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 156837 + ... + 156940.

Almost surely, 2^16316404 is an apocalyptic number.

It is an amenable number.

16316404 is a deficient number, since it is larger than the sum of its proper divisors (14433840).

16316404 is a wasteful number, since it uses less digits than its factorization.

16316404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313794 (or 313792 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 16316404 is about 4039.3568795045. The cubic root of 16316404 is about 253.6343966122.

Adding to 16316404 its reverse (40461361), we get a palindrome (56777765).

The spelling of 16316404 in words is "sixteen million, three hundred sixteen thousand, four hundred four".