12940048 has 20 divisors (see below), whose sum is σ = 27350928. Its totient is φ = 5881760.

The previous prime is 12940001. The next prime is 12940073. The reversal of 12940048 is 84004921.

It is a junction number, because it is equal to n+sod(n) for n = 12939998 and 12940025.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36586 + ... + 36937.

Almost surely, 2^12940048 is an apocalyptic number.

It is an amenable number.

12940048 is an abundant number, since it is smaller than the sum of its proper divisors (14410880).

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

12940048 is a wasteful number, since it uses less digits than its factorization.

12940048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73542 (or 73536 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 12940048 is about 3597.2278215315. The cubic root of 12940048 is about 234.7714573022.

Adding to 12940048 its reverse (84004921), we get a palindrome (96944969).

The spelling of 12940048 in words is "twelve million, nine hundred forty thousand, forty-eight".