12449439 has 12 divisors (see below), whose sum is σ = 18603000. Its totient is φ = 8013264.

The previous prime is 12449431. The next prime is 12449441. The reversal of 12449439 is 93494421.

It is not a de Polignac number, because 12449439 - 2³ = 12449431 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12449431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23589 + ... + 24110.

It is an arithmetic number, because the mean of its divisors is an integer number (1550250).

Almost surely, 2^12449439 is an apocalyptic number.

12449439 is a deficient number, since it is larger than the sum of its proper divisors (6153561).

12449439 is a wasteful number, since it uses less digits than its factorization.

12449439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47734 (or 47731 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 12449439 is about 3528.3762554467. The cubic root of 12449439 is about 231.7661076700.

The spelling of 12449439 in words is "twelve million, four hundred forty-nine thousand, four hundred thirty-nine".