12985296 has 20 divisors (see below), whose sum is σ = 33545472. Its totient is φ = 4328416.

The previous prime is 12985289. The next prime is 12985319. The reversal of 12985296 is 69258921.

It is an alternating number because its digits alternate between odd and even.

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, 135216 + ... + 135311.

Almost surely, 2^12985296 is an apocalyptic number.

12985296 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12985296 is an abundant number, since it is smaller than the sum of its proper divisors (20560176).

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

12985296 is a wasteful number, since it uses less digits than its factorization.

12985296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270538 (or 270532 counting only the distinct ones).

The product of its digits is 77760, while the sum is 42.

The square root of 12985296 is about 3603.5116206279. The cubic root of 12985296 is about 235.0447839804.

The spelling of 12985296 in words is "twelve million, nine hundred eighty-five thousand, two hundred ninety-six".