12404688 has 40 divisors (see below), whose sum is σ = 32343168. Its totient is φ = 4096512.

The previous prime is 12404677. The next prime is 12404699. The reversal of 12404688 is 88640421.

It is an interprime number because it is at equal distance from previous prime (12404677) and next prime (12404699).

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 4281 + ... + 6567.

Almost surely, 2^12404688 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 12404688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16171584).

12404688 is an abundant number, since it is smaller than the sum of its proper divisors (19938480).

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

12404688 is a wasteful number, since it uses less digits than its factorization.

12404688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2411 (or 2405 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 12404688 is about 3522.0289606986. The cubic root of 12404688 is about 231.4880705772.

The spelling of 12404688 in words is "twelve million, four hundred four thousand, six hundred eighty-eight".