12884280 has 64 divisors (see below), whose sum is σ = 40694400. Its totient is φ = 3254400.

The previous prime is 12884279. The next prime is 12884309. The reversal of 12884280 is 8248821.

It is a super-2 number, since 2×12884280² = 332009342236800, which contains 22 as substring.

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, 546 + ... + 5105.

It is an arithmetic number, because the mean of its divisors is an integer number (635850).

Almost surely, 2^12884280 is an apocalyptic number.

12884280 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 12884280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20347200).

12884280 is an abundant number, since it is smaller than the sum of its proper divisors (27810120).

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

12884280 is a wasteful number, since it uses less digits than its factorization.

12884280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5684 (or 5680 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 33.

The square root of 12884280 is about 3589.4679271446. The cubic root of 12884280 is about 234.4337051168.

The spelling of 12884280 in words is "twelve million, eight hundred eighty-four thousand, two hundred eighty".