12945660 has 96 divisors (see below), whose sum is σ = 44631552. Its totient is φ = 2730240.

The previous prime is 12945659. The next prime is 12945677. The reversal of 12945660 is 6654921.

12945660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12945660² = 335180225671200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4275 + ... + 6645.

It is an arithmetic number, because the mean of its divisors is an integer number (464912).

Almost surely, 2^12945660 is an apocalyptic number.

12945660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12945660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22315776).

12945660 is an abundant number, since it is smaller than the sum of its proper divisors (31685892).

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

12945660 is a wasteful number, since it uses less digits than its factorization.

12945660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2403 (or 2401 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 12945660 is about 3598.0077820928. The cubic root of 12945660 is about 234.8053919263.

The spelling of 12945660 in words is "twelve million, nine hundred forty-five thousand, six hundred sixty".