12908280 has 192 divisors, whose sum is σ = 49029120. Its totient is φ = 2661120.

The previous prime is 12908279. The next prime is 12908323. The reversal of 12908280 is 8280921.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 101577 + ... + 101703.

It is an arithmetic number, because the mean of its divisors is an integer number (255360).

Almost surely, 2^12908280 is an apocalyptic number.

12908280 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 12908280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24514560).

12908280 is an abundant number, since it is smaller than the sum of its proper divisors (36120840).

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

12908280 is a wasteful number, since it uses less digits than its factorization.

12908280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170 (or 155 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 12908280 is about 3592.8094856254. The cubic root of 12908280 is about 234.5791774555.

The spelling of 12908280 in words is "twelve million, nine hundred eight thousand, two hundred eighty".