12478272 has 56 divisors (see below), whose sum is σ = 34966656. Its totient is φ = 3913728.

The previous prime is 12478261. The next prime is 12478273. The reversal of 12478272 is 27287421.

12478272 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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (12478273) 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, 1353 + ... + 5175.

Almost surely, 2^12478272 is an apocalyptic number.

12478272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12478272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17483328).

12478272 is an abundant number, since it is smaller than the sum of its proper divisors (22488384).

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

12478272 is a wasteful number, since it uses less digits than its factorization.

12478272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3855 (or 3845 counting only the distinct ones).

The product of its digits is 12544, while the sum is 33.

The square root of 12478272 is about 3532.4597662252. The cubic root of 12478272 is about 231.9448937687.

The spelling of 12478272 in words is "twelve million, four hundred seventy-eight thousand, two hundred seventy-two".