12858720 has 192 divisors, whose sum is σ = 47900160. Its totient is φ = 2838528.

The previous prime is 12858719. The next prime is 12858737. The reversal of 12858720 is 2785821.

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, 144436 + ... + 144524.

It is an arithmetic number, because the mean of its divisors is an integer number (249480).

Almost surely, 2^12858720 is an apocalyptic number.

12858720 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 12858720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23950080).

12858720 is an abundant number, since it is smaller than the sum of its proper divisors (35041440).

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

12858720 is a wasteful number, since it uses less digits than its factorization.

12858720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157 (or 149 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 33.

The square root of 12858720 is about 3585.9057433234. The cubic root of 12858720 is about 234.2785782932.

The spelling of 12858720 in words is "twelve million, eight hundred fifty-eight thousand, seven hundred twenty".