12235278 has 48 divisors (see below), whose sum is σ = 28344960. Its totient is φ = 3508560.

The previous prime is 12235277. The next prime is 12235313. The reversal of 12235278 is 87253221.

12235278 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12235277) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13351 + ... + 14237.

It is an arithmetic number, because the mean of its divisors is an integer number (590520).

Almost surely, 2^12235278 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12235278, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14172480).

12235278 is an abundant number, since it is smaller than the sum of its proper divisors (16109682).

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

12235278 is a wasteful number, since it uses less digits than its factorization.

12235278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 933 (or 922 counting only the distinct ones).

The product of its digits is 6720, while the sum is 30.

The square root of 12235278 is about 3497.8962248757. The cubic root of 12235278 is about 230.4294308589.

Adding to 12235278 its reverse (87253221), we get a palindrome (99488499).

The spelling of 12235278 in words is "twelve million, two hundred thirty-five thousand, two hundred seventy-eight".