12280576 has 108 divisors (see below), whose sum is σ = 31457160. Its totient is φ = 4730880.

The previous prime is 12280573. The next prime is 12280591. The reversal of 12280576 is 67508221.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (12280573) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 137940 + ... + 138028.

It is an arithmetic number, because the mean of its divisors is an integer number (291270).

Almost surely, 2^12280576 is an apocalyptic number.

12280576 is a gapful number since it is divisible by the number (16) 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 12280576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15728580).

12280576 is an abundant number, since it is smaller than the sum of its proper divisors (19176584).

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

12280576 is an equidigital number, since it uses as much as digits as its factorization.

12280576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130 (or 109 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 12280576 is about 3504.3652777643. The cubic root of 12280576 is about 230.7134494008.

Adding to 12280576 its reverse (67508221), we get a palindrome (79788797).

The spelling of 12280576 in words is "twelve million, two hundred eighty thousand, five hundred seventy-six".