12539392 has 40 divisors (see below), whose sum is σ = 26393400. Its totient is φ = 5935104.

The previous prime is 12539389. The next prime is 12539467. The reversal of 12539392 is 29393521.

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, 9084 + ... + 10372.

It is an arithmetic number, because the mean of its divisors is an integer number (659835).

Almost surely, 2^12539392 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12539392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13196700).

12539392 is an abundant number, since it is smaller than the sum of its proper divisors (13854008).

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

12539392 is an equidigital number, since it uses as much as digits as its factorization.

12539392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1326 (or 1310 counting only the distinct ones).

The product of its digits is 14580, while the sum is 34.

The square root of 12539392 is about 3541.1003939454. The cubic root of 12539392 is about 232.3229746626.

The spelling of 12539392 in words is "twelve million, five hundred thirty-nine thousand, three hundred ninety-two".