12906380 has 48 divisors (see below), whose sum is σ = 28123200. Its totient is φ = 4972800.

The previous prime is 12906379. The next prime is 12906403. The reversal of 12906380 is 8360921.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86546 + ... + 86694.

It is an arithmetic number, because the mean of its divisors is an integer number (585900).

Almost surely, 2^12906380 is an apocalyptic number.

12906380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12906380 is an abundant number, since it is smaller than the sum of its proper divisors (15216820).

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

12906380 is a wasteful number, since it uses less digits than its factorization.

12906380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290 (or 288 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 12906380 is about 3592.5450588684. The cubic root of 12906380 is about 234.5676674710.

The spelling of 12906380 in words is "twelve million, nine hundred six thousand, three hundred eighty".