12538449 has 64 divisors (see below), whose sum is σ = 23930880. Its totient is φ = 6298560.

The previous prime is 12538439. The next prime is 12538453. The reversal of 12538449 is 94483521.

It is not a de Polignac number, because 12538449 - 2⁴ = 12538433 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12538439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 76842 + ... + 77004.

It is an arithmetic number, because the mean of its divisors is an integer number (373920).

Almost surely, 2^12538449 is an apocalyptic number.

It is an amenable number.

12538449 is a deficient number, since it is larger than the sum of its proper divisors (11392431).

12538449 is a wasteful number, since it uses less digits than its factorization.

12538449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227 (or 221 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 12538449 is about 3540.9672407409. The cubic root of 12538449 is about 232.3171507211.

The spelling of 12538449 in words is "twelve million, five hundred thirty-eight thousand, four hundred forty-nine".