12740048 has 20 divisors (see below), whose sum is σ = 25535940. Its totient is φ = 6150144.

The previous prime is 12740017. The next prime is 12740059. The reversal of 12740048 is 84004721.

It can be written as a sum of positive squares in 2 ways, for example, as 3055504 + 9684544 = 1748^2 + 3112^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12739999 and 12740026.

It is a congruent number.

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, 13265 + ... + 14192.

It is an arithmetic number, because the mean of its divisors is an integer number (1276797).

Almost surely, 2^12740048 is an apocalyptic number.

It is an amenable number.

12740048 is an abundant number, since it is smaller than the sum of its proper divisors (12795892).

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

12740048 is a wasteful number, since it uses less digits than its factorization.

12740048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27494 (or 27488 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 12740048 is about 3569.3203834904. The cubic root of 12740048 is about 233.5556375694. Note that the first 3 decimals are identical.

Adding to 12740048 its reverse (84004721), we get a palindrome (96744769).

The spelling of 12740048 in words is "twelve million, seven hundred forty thousand, forty-eight".