12308280 has 64 divisors (see below), whose sum is σ = 37303200. Its totient is φ = 3248640.

The previous prime is 12308269. The next prime is 12308297. The reversal of 12308280 is 8280321.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 12308280.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12610 + ... + 13550.

Almost surely, 2^12308280 is an apocalyptic number.

12308280 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 12308280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18651600).

12308280 is an abundant number, since it is smaller than the sum of its proper divisors (24994920).

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

12308280 is a wasteful number, since it uses less digits than its factorization.

12308280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1064 (or 1060 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 12308280 is about 3508.3158352691. The cubic root of 12308280 is about 230.8868094843.

The spelling of 12308280 in words is "twelve million, three hundred eight thousand, two hundred eighty".