12169644 has 12 divisors (see below), whose sum is σ = 28395864. Its totient is φ = 4056544.

The previous prime is 12169631. The next prime is 12169669. The reversal of 12169644 is 44696121.

It is a tau number, because it is divible by the number of its divisors (12).

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 3 ways as a sum of consecutive naturals, for example, 507057 + ... + 507080.

It is an arithmetic number, because the mean of its divisors is an integer number (2366322).

Almost surely, 2^12169644 is an apocalyptic number.

It is an amenable number.

12169644 is an abundant number, since it is smaller than the sum of its proper divisors (16226220).

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

12169644 is a wasteful number, since it uses less digits than its factorization.

12169644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1014144 (or 1014142 counting only the distinct ones).

The product of its digits is 10368, while the sum is 33.

The square root of 12169644 is about 3488.5016841045. The cubic root of 12169644 is about 230.0166591588.

The spelling of 12169644 in words is "twelve million, one hundred sixty-nine thousand, six hundred forty-four".