12489360 has 80 divisors (see below), whose sum is σ = 41705664. Its totient is φ = 3073536.

The previous prime is 12489359. The next prime is 12489371. The reversal of 12489360 is 6398421.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×12489360² = 311968226419200, which contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1119 + ... + 5121.

Almost surely, 2^12489360 is an apocalyptic number.

12489360 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 12489360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20852832).

12489360 is an abundant number, since it is smaller than the sum of its proper divisors (29216304).

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

12489360 is a wasteful number, since it uses less digits than its factorization.

12489360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4032 (or 4026 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 12489360 is about 3534.0288623609. The cubic root of 12489360 is about 232.0135743147.

The spelling of 12489360 in words is "twelve million, four hundred eighty-nine thousand, three hundred sixty".