12647340 has 120 divisors (see below), whose sum is σ = 40940592. Its totient is φ = 3265920.

The previous prime is 12647317. The next prime is 12647351. The reversal of 12647340 is 4374621.

12647340 is a `hidden beast` number, since 12 + 647 + 3 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 59835 + ... + 60045.

Almost surely, 2^12647340 is an apocalyptic number.

12647340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12647340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20470296).

12647340 is an abundant number, since it is smaller than the sum of its proper divisors (28293252).

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

12647340 is a wasteful number, since it uses less digits than its factorization.

12647340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269 (or 258 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 12647340 is about 3556.3098852603. The cubic root of 12647340 is about 232.9877378161.

The spelling of 12647340 in words is "twelve million, six hundred forty-seven thousand, three hundred forty".