12507280 has 40 divisors (see below), whose sum is σ = 29462400. Its totient is φ = 4937088.

The previous prime is 12507269. The next prime is 12507317. The reversal of 12507280 is 8270521.

12507280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5331 + ... + 7309.

It is an arithmetic number, because the mean of its divisors is an integer number (736560).

Almost surely, 2^12507280 is an apocalyptic number.

12507280 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 12507280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14731200).

12507280 is an abundant number, since it is smaller than the sum of its proper divisors (16955120).

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

12507280 is a wasteful number, since it uses less digits than its factorization.

12507280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2071 (or 2065 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 12507280 is about 3536.5633035477. The cubic root of 12507280 is about 232.1244872925.

The spelling of 12507280 in words is "twelve million, five hundred seven thousand, two hundred eighty".