12203664 has 80 divisors (see below), whose sum is σ = 35622720. Its totient is φ = 3566080.

The previous prime is 12203663. The next prime is 12203687. The reversal of 12203664 is 46630221.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (12203663) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 14914 + ... + 15710.

It is an arithmetic number, because the mean of its divisors is an integer number (445284).

Almost surely, 2^12203664 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 12203664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17811360).

12203664 is an abundant number, since it is smaller than the sum of its proper divisors (23419056).

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

12203664 is a wasteful number, since it uses less digits than its factorization.

12203664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 848 (or 842 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 12203664 is about 3493.3743000142. The cubic root of 12203664 is about 230.2307954241.

Adding to 12203664 its reverse (46630221), we get a palindrome (58833885).

It can be divided in two parts, 1220 and 3664, that added together give a palindrome (4884).

The spelling of 12203664 in words is "twelve million, two hundred three thousand, six hundred sixty-four".