12782330 has 32 divisors (see below), whose sum is σ = 25971840. Its totient is φ = 4486720.

The previous prime is 12782311. The next prime is 12782333. The reversal of 12782330 is 3328721.

12782330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12782330.

It is not an unprimeable number, because it can be changed into a prime (12782333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1187 + ... + 5193.

It is an arithmetic number, because the mean of its divisors is an integer number (811620).

Almost surely, 2^12782330 is an apocalyptic number.

12782330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12782330 is an abundant number, since it is smaller than the sum of its proper divisors (13189510).

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

12782330 is a wasteful number, since it uses less digits than its factorization.

12782330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4054.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 12782330 is about 3575.2384535860. The cubic root of 12782330 is about 233.8137290846.

It can be divided in two parts, 12782 and 330, that multiplied together give a triangular number (4218060 = T₂₉₀₄).

The spelling of 12782330 in words is "twelve million, seven hundred eighty-two thousand, three hundred thirty".