12759280 has 20 divisors (see below), whose sum is σ = 29665512. Its totient is φ = 5103680.

The previous prime is 12759277. The next prime is 12759287. The reversal of 12759280 is 8295721.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×12759280² = 325598452236800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12759287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79666 + ... + 79825.

Almost surely, 2^12759280 is an apocalyptic number.

12759280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12759280 is an abundant number, since it is smaller than the sum of its proper divisors (16906232).

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

12759280 is a wasteful number, since it uses less digits than its factorization.

12759280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159504 (or 159498 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 12759280 is about 3572.0134378247. The cubic root of 12759280 is about 233.6731013789.

The spelling of 12759280 in words is "twelve million, seven hundred fifty-nine thousand, two hundred eighty".