12608240 has 40 divisors (see below), whose sum is σ = 29515968. Its totient is φ = 5008640.

The previous prime is 12608177. The next prime is 12608249. The reversal of 12608240 is 4280621.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12608249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13385 + ... + 14295.

Almost surely, 2^12608240 is an apocalyptic number.

12608240 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 12608240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14757984).

12608240 is an abundant number, since it is smaller than the sum of its proper divisors (16907728).

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

12608240 is a wasteful number, since it uses less digits than its factorization.

12608240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1097 (or 1091 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 12608240 is about 3550.8083586699. The cubic root of 12608240 is about 232.7473915047.

Adding to 12608240 its reverse (4280621), we get a palindrome (16888861).

The spelling of 12608240 in words is "twelve million, six hundred eight thousand, two hundred forty".