16316320 has 24 divisors (see below), whose sum is σ = 38547684. Its totient is φ = 6526464.

The previous prime is 16316317. The next prime is 16316347. The reversal of 16316320 is 2361361.

It can be written as a sum of positive squares in 2 ways, for example, as 14961424 + 1354896 = 3868^2 + 1164^2 .

It is a junction number, because it is equal to n+sod(n) for n = 16316291 and 16316300.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50829 + ... + 51148.

Almost surely, 2^16316320 is an apocalyptic number.

16316320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16316320 is an abundant number, since it is smaller than the sum of its proper divisors (22231364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16316320 is a wasteful number, since it uses less digits than its factorization.

16316320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101992 (or 101984 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 16316320 is about 4039.3464817963. The cubic root of 16316320 is about 253.6339613585.

Adding to 16316320 its reverse (2361361), we get a palindrome (18677681).

The spelling of 16316320 in words is "sixteen million, three hundred sixteen thousand, three hundred twenty".