12756030 has 128 divisors (see below), whose sum is σ = 38707200. Its totient is φ = 2623104.

The previous prime is 12756019. The next prime is 12756031. The reversal of 12756030 is 3065721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12756031) 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 63 ways as a sum of consecutive naturals, for example, 91701 + ... + 91839.

It is an arithmetic number, because the mean of its divisors is an integer number (302400).

Almost surely, 2^12756030 is an apocalyptic number.

12756030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12756030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19353600).

12756030 is an abundant number, since it is smaller than the sum of its proper divisors (25951170).

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

12756030 is a wasteful number, since it uses less digits than its factorization.

12756030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198.

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 12756030 is about 3571.5584833515. The cubic root of 12756030 is about 233.6532595574.

The spelling of 12756030 in words is "twelve million, seven hundred fifty-six thousand, thirty".