12478434 has 8 divisors (see below), whose sum is σ = 24956880. Its totient is φ = 4159476.

The previous prime is 12478409. The next prime is 12478451. The reversal of 12478434 is 43487421.

It is a sphenic number, since it is the product of 3 distinct primes.

12478434 is an admirable number.

It is a super-2 number, since 2×12478434² = 311422630184712, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12478395 and 12478404.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1039864 + ... + 1039875.

It is an arithmetic number, because the mean of its divisors is an integer number (3119610).

Almost surely, 2^12478434 is an apocalyptic number.

12478434 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12478434 is a wasteful number, since it uses less digits than its factorization.

12478434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2079744.

The product of its digits is 21504, while the sum is 33.

The square root of 12478434 is about 3532.4826963483. The cubic root of 12478434 is about 231.9458975111.

The spelling of 12478434 in words is "twelve million, four hundred seventy-eight thousand, four hundred thirty-four".