12820264 has 16 divisors (see below), whose sum is σ = 24100020. Its totient is φ = 6393600.

The previous prime is 12820259. The next prime is 12820289. The reversal of 12820264 is 46202821.

It is a happy number.

12820264 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11902500 + 917764 = 3450^2 + 958^2 .

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, 1614 + ... + 5314.

Almost surely, 2^12820264 is an apocalyptic number.

It is an amenable number.

12820264 is a deficient number, since it is larger than the sum of its proper divisors (11279756).

12820264 is a wasteful number, since it uses less digits than its factorization.

12820264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4140 (or 4136 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 12820264 is about 3580.5396241349. The cubic root of 12820264 is about 234.0447962549.

The spelling of 12820264 in words is "twelve million, eight hundred twenty thousand, two hundred sixty-four".