12729120 has 96 divisors (see below), whose sum is σ = 41876352. Its totient is φ = 3244032.

The previous prime is 12729113. The next prime is 12729133. The reversal of 12729120 is 2192721.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10464 + ... + 11616.

It is an arithmetic number, because the mean of its divisors is an integer number (436212).

Almost surely, 2^12729120 is an apocalyptic number.

12729120 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 12729120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20938176).

12729120 is an abundant number, since it is smaller than the sum of its proper divisors (29147232).

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

12729120 is a wasteful number, since it uses less digits than its factorization.

12729120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1194 (or 1186 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 12729120 is about 3567.7892314429. The cubic root of 12729120 is about 233.4888396496.

The spelling of 12729120 in words is "twelve million, seven hundred twenty-nine thousand, one hundred twenty".