12204400 has 60 divisors (see below), whose sum is σ = 31589992. Its totient is φ = 4504320.

The previous prime is 12204397. The next prime is 12204431. The reversal of 12204400 is 440221.

12204400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4027 + ... + 6373.

Almost surely, 2^12204400 is an apocalyptic number.

12204400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12204400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15794996).

12204400 is an abundant number, since it is smaller than the sum of its proper divisors (19385592).

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

12204400 is a wasteful number, since it uses less digits than its factorization.

12204400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2378 (or 2367 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 12204400 is about 3493.4796407021. The cubic root of 12204400 is about 230.2354237188.

Adding to 12204400 its reverse (440221), we get a palindrome (12644621).

The spelling of 12204400 in words is "twelve million, two hundred four thousand, four hundred".