12350640 has 40 divisors (see below), whose sum is σ = 38287728. Its totient is φ = 3293440.

The previous prime is 12350581. The next prime is 12350641. The reversal of 12350640 is 4605321.

It is a happy number.

12350640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (12350641) 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, 25491 + ... + 25970.

Almost surely, 2^12350640 is an apocalyptic number.

12350640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12350640 is an abundant number, since it is smaller than the sum of its proper divisors (25937088).

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

12350640 is a wasteful number, since it uses less digits than its factorization.

12350640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51477 (or 51471 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 12350640 is about 3514.3477346444. The cubic root of 12350640 is about 231.1513784483.

Adding to 12350640 its reverse (4605321), we get a palindrome (16955961).

The spelling of 12350640 in words is "twelve million, three hundred fifty thousand, six hundred forty".