12396280 has 64 divisors (see below), whose sum is σ = 31046400. Its totient is φ = 4423680.

The previous prime is 12396269. The next prime is 12396289. The reversal of 12396280 is 8269321.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12396289) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15736 + ... + 16504.

It is an arithmetic number, because the mean of its divisors is an integer number (485100).

Almost surely, 2^12396280 is an apocalyptic number.

12396280 is a gapful number since it is divisible by the number (10) 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 12396280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15523200).

12396280 is an abundant number, since it is smaller than the sum of its proper divisors (18650120).

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

12396280 is a wasteful number, since it uses less digits than its factorization.

12396280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824 (or 820 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 12396280 is about 3520.8351282047. The cubic root of 12396280 is about 231.4357572471.

The spelling of 12396280 in words is "twelve million, three hundred ninety-six thousand, two hundred eighty".