12982356 has 60 divisors (see below), whose sum is σ = 35950068. Its totient is φ = 4071168.

The previous prime is 12982351. The next prime is 12982367. The reversal of 12982356 is 65328921.

It can be written as a sum of positive squares in 2 ways, for example, as 6170256 + 6812100 = 2484^2 + 2610^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 12982356.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12982351) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4330 + ... + 6686.

Almost surely, 2^12982356 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12982356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17975034).

12982356 is an abundant number, since it is smaller than the sum of its proper divisors (22967712).

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

12982356 is a wasteful number, since it uses less digits than its factorization.

12982356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2390 (or 2379 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 12982356 is about 3603.1036621224. The cubic root of 12982356 is about 235.0270438169.

The spelling of 12982356 in words is "twelve million, nine hundred eighty-two thousand, three hundred fifty-six".