12035640 has 32 divisors (see below), whose sum is σ = 36107280. Its totient is φ = 3209472.

The previous prime is 12035633. The next prime is 12035659. The reversal of 12035640 is 4653021.

It is a happy number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 50029 + ... + 50268.

Almost surely, 2^12035640 is an apocalyptic number.

12035640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12035640 is an abundant number, since it is smaller than the sum of its proper divisors (24071640).

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

12035640 is a wasteful number, since it uses less digits than its factorization.

12035640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100311 (or 100307 counting only the distinct ones).

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

The square root of 12035640 is about 3469.2419921360. The cubic root of 12035640 is about 229.1692779133.

Adding to 12035640 its reverse (4653021), we get a palindrome (16688661).

The spelling of 12035640 in words is "twelve million, thirty-five thousand, six hundred forty".