12616320 has 64 divisors (see below), whose sum is σ = 40220640. Its totient is φ = 3363840.

The previous prime is 12616319. The next prime is 12616327. The reversal of 12616320 is 2361621.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (12616327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1366 + ... + 5205.

Almost surely, 2^12616320 is an apocalyptic number.

12616320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12616320 is an abundant number, since it is smaller than the sum of its proper divisors (27604320).

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

12616320 is an equidigital number, since it uses as much as digits as its factorization.

12616320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6593 (or 6581 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 12616320 is about 3551.9459455346. The cubic root of 12616320 is about 232.7970996675.

Adding to 12616320 its reverse (2361621), we get a palindrome (14977941).

The spelling of 12616320 in words is "twelve million, six hundred sixteen thousand, three hundred twenty".