12489960 has 64 divisors (see below), whose sum is σ = 42825600. Its totient is φ = 2854656.

The previous prime is 12489959. The next prime is 12489991. The reversal of 12489960 is 6998421.

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, 6595 + ... + 8274.

It is an arithmetic number, because the mean of its divisors is an integer number (669150).

Almost surely, 2^12489960 is an apocalyptic number.

12489960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12489960 is an abundant number, since it is smaller than the sum of its proper divisors (30335640).

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

12489960 is a wasteful number, since it uses less digits than its factorization.

12489960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14890 (or 14886 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 12489960 is about 3534.1137502916. The cubic root of 12489960 is about 232.0172896350.

The spelling of 12489960 in words is "twelve million, four hundred eighty-nine thousand, nine hundred sixty".