12273688 has 32 divisors (see below), whose sum is σ = 26739360. Its totient is φ = 5172480.

The previous prime is 12273683. The next prime is 12273689. The reversal of 12273688 is 88637221.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12273683) 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, 1620 + ... + 5212.

It is an arithmetic number, because the mean of its divisors is an integer number (835605).

Almost surely, 2^12273688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12273688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13369680).

12273688 is an abundant number, since it is smaller than the sum of its proper divisors (14465672).

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

12273688 is a wasteful number, since it uses less digits than its factorization.

12273688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3667 (or 3663 counting only the distinct ones).

The product of its digits is 32256, while the sum is 37.

The square root of 12273688 is about 3503.3823656575. The cubic root of 12273688 is about 230.6703067056.

The spelling of 12273688 in words is "twelve million, two hundred seventy-three thousand, six hundred eighty-eight".