12886320 has 40 divisors (see below), whose sum is σ = 39948336. Its totient is φ = 3436288.

The previous prime is 12886301. The next prime is 12886327. The reversal of 12886320 is 2368821.

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

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (12886327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26607 + ... + 27086.

Almost surely, 2^12886320 is an apocalyptic number.

12886320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12886320 is an abundant number, since it is smaller than the sum of its proper divisors (27062016).

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

12886320 is a wasteful number, since it uses less digits than its factorization.

12886320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53709 (or 53703 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 12886320 is about 3589.7520805760. The cubic root of 12886320 is about 234.4460772871.

The spelling of 12886320 in words is "twelve million, eight hundred eighty-six thousand, three hundred twenty".