12740288 has 28 divisors (see below), whose sum is σ = 27581352. Its totient is φ = 5790720.

The previous prime is 12740281. The next prime is 12740291. The reversal of 12740288 is 88204721.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (12740281) 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, 8345 + ... + 9752.

Almost surely, 2^12740288 is an apocalyptic number.

It is an amenable number.

12740288 is an abundant number, since it is smaller than the sum of its proper divisors (14841064).

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

12740288 is a wasteful number, since it uses less digits than its factorization.

12740288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18120 (or 18110 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 32.

The square root of 12740288 is about 3569.3540031776. The cubic root of 12740288 is about 233.5571041521.

The spelling of 12740288 in words is "twelve million, seven hundred forty thousand, two hundred eighty-eight".