12040646 has 8 divisors (see below), whose sum is σ = 18401904. Its totient is φ = 5906680.

The previous prime is 12040631. The next prime is 12040649. The reversal of 12040646 is 64604021.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12040649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56690 + ... + 56901.

It is an arithmetic number, because the mean of its divisors is an integer number (2300238).

Almost surely, 2^12040646 is an apocalyptic number.

12040646 is a deficient number, since it is larger than the sum of its proper divisors (6361258).

12040646 is a wasteful number, since it uses less digits than its factorization.

12040646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113646.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 12040646 is about 3469.9634003834. The cubic root of 12040646 is about 229.2010464050.

Adding to 12040646 its reverse (64604021), we get a palindrome (76644667).

The spelling of 12040646 in words is "twelve million, forty thousand, six hundred forty-six".