13212860 has 12 divisors (see below), whose sum is σ = 27747048. Its totient is φ = 5285136.

The previous prime is 13212841. The next prime is 13212863. The reversal of 13212860 is 6821231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13212863) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 330302 + ... + 330341.

It is an arithmetic number, because the mean of its divisors is an integer number (2312254).

Almost surely, 2^13212860 is an apocalyptic number.

13212860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13212860 is an abundant number, since it is smaller than the sum of its proper divisors (14534188).

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

13212860 is a wasteful number, since it uses less digits than its factorization.

13212860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660652 (or 660650 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 13212860 is about 3634.9497933259. The cubic root of 13212860 is about 236.4098737768.

The spelling of 13212860 in words is "thirteen million, two hundred twelve thousand, eight hundred sixty".