12652278 has 16 divisors (see below), whose sum is σ = 26121216. Its totient is φ = 4081320.

The previous prime is 12652253. The next prime is 12652279. The reversal of 12652278 is 87225621.

12652278 is digitally balanced in base 2, because in such base 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 (12652279) 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, 33826 + ... + 34197.

It is an arithmetic number, because the mean of its divisors is an integer number (1632576).

Almost surely, 2^12652278 is an apocalyptic number.

12652278 is an abundant number, since it is smaller than the sum of its proper divisors (13468938).

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

12652278 is a wasteful number, since it uses less digits than its factorization.

12652278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68059.

The product of its digits is 13440, while the sum is 33.

The square root of 12652278 is about 3557.0040764666. The cubic root of 12652278 is about 233.0180562797.

Adding to 12652278 its reverse (87225621), we get a palindrome (99877899).

The spelling of 12652278 in words is "twelve million, six hundred fifty-two thousand, two hundred seventy-eight".