12880530 has 96 divisors (see below), whose sum is σ = 36756720. Its totient is φ = 3110400.

The previous prime is 12880523. The next prime is 12880559. The reversal of 12880530 is 3508821.

It is a happy number.

12880530 is a `hidden beast` number, since 128 + 8 + 0 + 530 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 8071281 + 4809249 = 2841^2 + 2193^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12880494 and 12880503.

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, 118116 + ... + 118224.

Almost surely, 2^12880530 is an apocalyptic number.

12880530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12880530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18378360).

12880530 is an abundant number, since it is smaller than the sum of its proper divisors (23876190).

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

12880530 is a wasteful number, since it uses less digits than its factorization.

12880530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236 (or 233 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 12880530 is about 3588.9455275888. The cubic root of 12880530 is about 234.4109587494.

The spelling of 12880530 in words is "twelve million, eight hundred eighty thousand, five hundred thirty".