12981338 has 16 divisors (see below), whose sum is σ = 20817216. Its totient is φ = 6056160.

The previous prime is 12981337. The next prime is 12981341. The reversal of 12981338 is 83318921.

It is a junction number, because it is equal to n+sod(n) for n = 12981298 and 12981307.

It is not an unprimeable number, because it can be changed into a prime (12981337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1556 + ... + 5327.

It is an arithmetic number, because the mean of its divisors is an integer number (1301076).

Almost surely, 2^12981338 is an apocalyptic number.

12981338 is a deficient number, since it is larger than the sum of its proper divisors (7835878).

12981338 is a wasteful number, since it uses less digits than its factorization.

12981338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6949.

The product of its digits is 10368, while the sum is 35.

The square root of 12981338 is about 3602.9623922545. The cubic root of 12981338 is about 235.0209005102.

The spelling of 12981338 in words is "twelve million, nine hundred eighty-one thousand, three hundred thirty-eight".