12532644 has 60 divisors (see below), whose sum is σ = 33500544. Its totient is φ = 4083696.

The previous prime is 12532643. The next prime is 12532673. The reversal of 12532644 is 44623521.

12532644 is a `hidden beast` number, since 12 + 5 + 3 + 2 + 644 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (12532643) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 14817 + ... + 15639.

Almost surely, 2^12532644 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12532644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16750272).

12532644 is an abundant number, since it is smaller than the sum of its proper divisors (20967900).

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

12532644 is a wasteful number, since it uses less digits than its factorization.

12532644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 886 (or 875 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 12532644 is about 3540.1474545561. The cubic root of 12532644 is about 232.2812927709.

The spelling of 12532644 in words is "twelve million, five hundred thirty-two thousand, six hundred forty-four".