12257488 has 20 divisors (see below), whose sum is σ = 24568740. Its totient is φ = 5917184.

The previous prime is 12257477. The next prime is 12257491. The reversal of 12257488 is 88475221.

It can be written as a sum of positive squares in 2 ways, for example, as 4032064 + 8225424 = 2008^2 + 2868^2 .

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, 12745 + ... + 13672.

It is an arithmetic number, because the mean of its divisors is an integer number (1228437).

Almost surely, 2^12257488 is an apocalyptic number.

It is an amenable number.

12257488 is an abundant number, since it is smaller than the sum of its proper divisors (12311252).

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

12257488 is a wasteful number, since it uses less digits than its factorization.

12257488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26454 (or 26448 counting only the distinct ones).

The product of its digits is 35840, while the sum is 37.

The square root of 12257488 is about 3501.0695508658. The cubic root of 12257488 is about 230.5687750317.

The spelling of 12257488 in words is "twelve million, two hundred fifty-seven thousand, four hundred eighty-eight".