12538396 has 24 divisors (see below), whose sum is σ = 23869664. Its totient is φ = 5728320.

The previous prime is 12538391. The next prime is 12538397. The reversal of 12538396 is 69383521.

It is a super-3 number, since 3×12538396³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12538391) 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 7 ways as a sum of consecutive naturals, for example, 4186 + ... + 6526.

Almost surely, 2^12538396 is an apocalyptic number.

It is an amenable number.

12538396 is a deficient number, since it is larger than the sum of its proper divisors (11331268).

12538396 is a wasteful number, since it uses less digits than its factorization.

12538396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2461 (or 2459 counting only the distinct ones).

The product of its digits is 38880, while the sum is 37.

The square root of 12538396 is about 3540.9597569021. The cubic root of 12538396 is about 232.3168233859.

The spelling of 12538396 in words is "twelve million, five hundred thirty-eight thousand, three hundred ninety-six".