12053646 has 48 divisors (see below), whose sum is σ = 30174768. Its totient is φ = 3436800.

The previous prime is 12053627. The next prime is 12053669. The reversal of 12053646 is 64635021.

12053646 is a `hidden beast` number, since 12 + 0 + 5 + 3 + 646 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1576 + ... + 5156.

It is an arithmetic number, because the mean of its divisors is an integer number (628641).

Almost surely, 2^12053646 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12053646, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15087384).

12053646 is an abundant number, since it is smaller than the sum of its proper divisors (18121122).

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

12053646 is a wasteful number, since it uses less digits than its factorization.

12053646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3617 (or 3614 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 12053646 is about 3471.8361136436. The cubic root of 12053646 is about 229.2835043812.

Adding to 12053646 its reverse (64635021), we get a palindrome (76688667).

It can be divided in two parts, 1205 and 3646, that added together give a triangular number (4851 = T₉₈).

The spelling of 12053646 in words is "twelve million, fifty-three thousand, six hundred forty-six".