12816270 has 24 divisors (see below), whose sum is σ = 33322536. Its totient is φ = 3417648.

The previous prime is 12816269. The next prime is 12816277. The reversal of 12816270 is 7261821.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12816277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71112 + ... + 71291.

It is an arithmetic number, because the mean of its divisors is an integer number (1388439).

Almost surely, 2^12816270 is an apocalyptic number.

12816270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12816270 is an abundant number, since it is smaller than the sum of its proper divisors (20506266).

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

12816270 is a wasteful number, since it uses less digits than its factorization.

12816270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142416 (or 142413 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 12816270 is about 3579.9818435294. The cubic root of 12816270 is about 234.0204891110.

The spelling of 12816270 in words is "twelve million, eight hundred sixteen thousand, two hundred seventy".