12404412 has 18 divisors (see below), whose sum is σ = 31355688. Its totient is φ = 4134792.

The previous prime is 12404401. The next prime is 12404417. The reversal of 12404412 is 21440421.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12404417) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 172248 + ... + 172319.

Almost surely, 2^12404412 is an apocalyptic number.

12404412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12404412 is an abundant number, since it is smaller than the sum of its proper divisors (18951276).

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

12404412 is a wasteful number, since it uses less digits than its factorization.

12404412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344577 (or 344572 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 12404412 is about 3521.9897785201. The cubic root of 12404412 is about 231.4863537214.

Adding to 12404412 its reverse (21440421), we get a palindrome (33844833).

The spelling of 12404412 in words is "twelve million, four hundred four thousand, four hundred twelve".