12288772 has 12 divisors (see below), whose sum is σ = 22199296. Its totient is φ = 5946120.

The previous prime is 12288767. The next prime is 12288781. The reversal of 12288772 is 27788221.

It is a happy number.

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, 49428 + ... + 49675.

Almost surely, 2^12288772 is an apocalyptic number.

It is an amenable number.

12288772 is a deficient number, since it is larger than the sum of its proper divisors (9910524).

12288772 is a wasteful number, since it uses less digits than its factorization.

12288772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99138 (or 99136 counting only the distinct ones).

The product of its digits is 25088, while the sum is 37.

The square root of 12288772 is about 3505.5344813594. The cubic root of 12288772 is about 230.7647636856.

It can be divided in two parts, 1228 and 8772, that added together give a 4-th power (10000 = 10⁴).

The spelling of 12288772 in words is "twelve million, two hundred eighty-eight thousand, seven hundred seventy-two".