12980438 has 4 divisors (see below), whose sum is σ = 19470660. Its totient is φ = 6490218.

The previous prime is 12980431. The next prime is 12980447. The reversal of 12980438 is 83408921.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 12980398 and 12980407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12980431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3245108 + ... + 3245111.

It is an arithmetic number, because the mean of its divisors is an integer number (4867665).

Almost surely, 2^12980438 is an apocalyptic number.

12980438 is a deficient number, since it is larger than the sum of its proper divisors (6490222).

12980438 is an equidigital number, since it uses as much as digits as its factorization.

12980438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6490221.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 12980438 is about 3602.8374928659. The cubic root of 12980438 is about 235.0154690285.

The spelling of 12980438 in words is "twelve million, nine hundred eighty thousand, four hundred thirty-eight".