12740024 has 16 divisors (see below), whose sum is σ = 26059320. Its totient is φ = 5790880.

The previous prime is 12740017. The next prime is 12740059. The reversal of 12740024 is 42004721.

It is a junction number, because it is equal to n+sod(n) for n = 12739978 and 12740005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72299 + ... + 72474.

Almost surely, 2^12740024 is an apocalyptic number.

It is an amenable number.

12740024 is an abundant number, since it is smaller than the sum of its proper divisors (13319296).

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

12740024 is a wasteful number, since it uses less digits than its factorization.

12740024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144790 (or 144786 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 12740024 is about 3569.3170215043. The cubic root of 12740024 is about 233.5554909101. Note that the first 3 decimals are identical.

Adding to 12740024 its reverse (42004721), we get a palindrome (54744745).

The spelling of 12740024 in words is "twelve million, seven hundred forty thousand, twenty-four".