12478404 has 24 divisors (see below), whose sum is σ = 29595328. Its totient is φ = 4091040.

The previous prime is 12478393. The next prime is 12478409. The reversal of 12478404 is 40487421.

It is not an unprimeable number, because it can be changed into a prime (12478409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7792 + ... + 9255.

Almost surely, 2^12478404 is an apocalyptic number.

It is an amenable number.

12478404 is an abundant number, since it is smaller than the sum of its proper divisors (17116924).

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

12478404 is a wasteful number, since it uses less digits than its factorization.

12478404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17115 (or 17113 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 30.

The square root of 12478404 is about 3532.4784500404. The cubic root of 12478404 is about 231.9457116335.

The spelling of 12478404 in words is "twelve million, four hundred seventy-eight thousand, four hundred four".