12788264 has 16 divisors (see below), whose sum is σ = 24431220. Its totient is φ = 6273280.

The previous prime is 12788263. The next prime is 12788327. The reversal of 12788264 is 46288721.

It can be written as a sum of positive squares in 2 ways, for example, as 11847364 + 940900 = 3442^2 + 970^2 .

It is a super-2 number, since 2×12788264² = 327079392267392, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12788261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14657 + ... + 15504.

Almost surely, 2^12788264 is an apocalyptic number.

It is an amenable number.

12788264 is a deficient number, since it is larger than the sum of its proper divisors (11642956).

12788264 is a wasteful number, since it uses less digits than its factorization.

12788264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30220 (or 30216 counting only the distinct ones).

The product of its digits is 43008, while the sum is 38.

The square root of 12788264 is about 3576.0682320112. The cubic root of 12788264 is about 233.8499049624.

The spelling of 12788264 in words is "twelve million, seven hundred eighty-eight thousand, two hundred sixty-four".