12945980 has 24 divisors (see below), whose sum is σ = 27336960. Its totient is φ = 5149760.

The previous prime is 12945979. The next prime is 12945983. The reversal of 12945980 is 8954921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12945983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2126 + ... + 5514.

It is an arithmetic number, because the mean of its divisors is an integer number (1139040).

Almost surely, 2^12945980 is an apocalyptic number.

12945980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12945980 is an abundant number, since it is smaller than the sum of its proper divisors (14390980).

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

12945980 is a wasteful number, since it uses less digits than its factorization.

12945980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3589 (or 3587 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 12945980 is about 3598.0522508713. The cubic root of 12945980 is about 234.8073266058.

The spelling of 12945980 in words is "twelve million, nine hundred forty-five thousand, nine hundred eighty".