12583280 has 20 divisors (see below), whose sum is σ = 29256312. Its totient is φ = 5033280.

The previous prime is 12583273. The next prime is 12583297. The reversal of 12583280 is 8238521.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78566 + ... + 78725.

Almost surely, 2^12583280 is an apocalyptic number.

12583280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12583280 is an abundant number, since it is smaller than the sum of its proper divisors (16673032).

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

12583280 is a wasteful number, since it uses less digits than its factorization.

12583280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157304 (or 157298 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 12583280 is about 3547.2919248351. The cubic root of 12583280 is about 232.5937033177.

The spelling of 12583280 in words is "twelve million, five hundred eighty-three thousand, two hundred eighty".