12303280 has 120 divisors (see below), whose sum is σ = 33247872. Its totient is φ = 4224000.

The previous prime is 12303233. The next prime is 12303281. The reversal of 12303280 is 8230321.

It is a happy number.

12303280 is a nontrivial binomial coefficient, being equal to C(4961, 2).

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12303281) 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, 300060 + ... + 300100.

Almost surely, 2^12303280 is an apocalyptic number.

12303280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12303280 is the 4960-th triangular number.

12303280 is the 1654-th centered nonagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12303280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16623936).

12303280 is an abundant number, since it is smaller than the sum of its proper divisors (20944592).

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

12303280 is a wasteful number, since it uses less digits than its factorization.

12303280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107 (or 90 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 12303280 is about 3507.6031702574. The cubic root of 12303280 is about 230.8555408205.

The spelling of 12303280 in words is "twelve million, three hundred three thousand, two hundred eighty".