12946880 has 28 divisors (see below), whose sum is σ = 30830520. Its totient is φ = 5178624.

The previous prime is 12946873. The next prime is 12946883. The reversal of 12946880 is 8864921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12946883) 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, 19910 + ... + 20549.

It is an arithmetic number, because the mean of its divisors is an integer number (1101090).

Almost surely, 2^12946880 is an apocalyptic number.

12946880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12946880 is an abundant number, since it is smaller than the sum of its proper divisors (17883640).

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

12946880 is an equidigital number, since it uses as much as digits as its factorization.

12946880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40476 (or 40466 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 12946880 is about 3598.1773163645. The cubic root of 12946880 is about 234.8127677208.

The spelling of 12946880 in words is "twelve million, nine hundred forty-six thousand, eight hundred eighty".