12404400 has 60 divisors (see below), whose sum is σ = 39739272. Its totient is φ = 3307520.

The previous prime is 12404389. The next prime is 12404401. The reversal of 12404400 is 440421.

12404400 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12404400.

It is not an unprimeable number, because it can be changed into a prime (12404401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3969 + ... + 6368.

Almost surely, 2^12404400 is an apocalyptic number.

12404400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12404400 is an abundant number, since it is smaller than the sum of its proper divisors (27334872).

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

12404400 is a wasteful number, since it uses less digits than its factorization.

12404400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10358 (or 10347 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 12404400 is about 3521.9880749372. The cubic root of 12404400 is about 231.4862790749.

Adding to 12404400 its reverse (440421), we get a palindrome (12844821).

The spelling of 12404400 in words is "twelve million, four hundred four thousand, four hundred".