12035840 has 36 divisors (see below), whose sum is σ = 28832664. Its totient is φ = 4813824.

The previous prime is 12035839. The next prime is 12035851. The reversal of 12035840 is 4853021.

It is a super-2 number, since 2×12035840² = 289722889011200, which contains 22 as substring.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3422 + ... + 5981.

Almost surely, 2^12035840 is an apocalyptic number.

12035840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12035840 is an abundant number, since it is smaller than the sum of its proper divisors (16796824).

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

12035840 is an frugal number, since it uses more digits than its factorization.

12035840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9424 (or 9410 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 12035840 is about 3469.2708167567. The cubic root of 12035840 is about 229.1705472988.

Adding to 12035840 its reverse (4853021), we get a palindrome (16888861).

The spelling of 12035840 in words is "twelve million, thirty-five thousand, eight hundred forty".